What Distance Should you Zero your AR 15?
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- เผยแพร่เมื่อ 2 ต.ค. 2024
- This video discusses the principles of rifles zeros and where "standardized" zeros like the 25/300 and 50/200 fall short. Do the data, find the solution that best fits your weapon, your optic, and your ammunition.
If you want to know more about rifle fundamentals, check out the Intro to the Tactical Rifle video series at: • Introduction to the Ta...
www.greeneyetactical.com
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It had been three years since I last shot my rifle. Moved out into the sticks, built a home shooting range and now I am blowing through 100 rounds a week. This video is very relevant to me in trying to figure out the best way to set up my rifle. Thank you.
Curious to hear what you opted for. I'm keen on the 36 yard zero, but in my locale - eastern woods with 75 yard shots maximum - the 50 yard zero might be better.
Lucky guy, I want my own range so bad!
I like how you understand physics. Whether an object is travelling or standing still, they all drop at the same speed. Thank you for this video.
You would be astonished at how much that statement flipped some guys out
An excellent detailed thought provoking video. Your extemporaneous delivery of an hour and 20 minutes explanation of your thought process shows that you know the subject at a level most do not.
Just doing a "quick video" at 2 am while drinking coffee..... 77 minutes later. 🤣 Awesome!
Double Bee 😂😂
2 more coffees and hed still be talking.
😀😃
Me: *Starts watching video*
Eric, from Green Eye Tactical: "I wanted to do a quick video..."
Me: *Looks down to see 1 hour, 17 minutes, and 38 seconds left in the video*
@0:17
Too Much Coffee....
An hour isn't a quickie? Hm, I need to change my metrics in other arenas.
@@Greeneyetactical Just poking fun. I appreciate the information.
@@jeremystubbs4397 same, no worries man
Man I cannot stress enough the appreciation of you doing this video! Thank you!
I loved this video.. lots of information ..
I had just watched a video about the 36/32yrd zero .. but hie you broke down the yards and Bullet drops at different yards with a standardized zero was very helpful.... i had to subscribe to watch later videos lol... thanks again ..
Don't forget that for the Santos 36 yard zero, the factory setting for the rear elevation needs to be reset on where it bottoms out. It should bottom out 2 clicks past where factory set it at on the M16a2.
I only briefly mentioned it to explain the origin of it. That type of zero will not match the ballistics of your common AR-15, ammo and sight combinations
Can I get a quick 2hr video on dot size , good info I liked it
No but I did an 84 page report on reddot parallax
Well done. Very informative with a nice dose of wisdom imparted at the end..... data / facts really do matter and are essential to zeroing.....and to having constructive conversations as a whole. Keep up the great work!
Glad you liked it.
Thank you for taking the time to make this video . Extremely helpful.wrapping my head around the fact that gravity effects. The bullet right away was helpful. I fly as a hobby so I know that the bullet has zero flight properties. Great info. Thanks from the ATL. Mike.
You would be surprised to see how many angry messages I get from people screaming that a bullet DOES have lift properties and it DOES rise. But, they are probably flat earther's anyway
Green Eye Tactical 😂 the dumbing down of our society is complete . It actually scares me that the human mind can be molded ( to a degree ) to believe or say they believe anything you want. These flat earth people remind me of overtly religious people. It’s like ok if nobody was around would you act or say these things.How do you believe it’s flat? . Lol. Idk.
Yea but back on GRAVITY. Yea that bullet might have a better flight characteristics than a brick but ZERO positive climb. LIFT WIEGHT DRAG. and that bullets is not overcoming lift.
This does bring up a cool idea. Imagine we had little wings on the bullets that pop out.to over comb lift. Lol. 10 mile long range shot! now all we need is a huge scope👍
I chose RIBZ, since it seems like the most practical. On the range I know where 100 yards is, set the disk back 6 clicks from 6/3, then at 6/3 - 6 zero for 100 yards adjusting the front site. At this given distance I then switch to the various number of clicks up and note how close they are to the markings on the drum.. Plus I'm zeroing a 20 inch barrel with the carry handle sight, and standard F-marked front sight. Otherwise, I've always zeroed at 100 yards, using a mildot scope, at the specific location, note the various hold overs for various distances. That's why I love the mildot scope.. There's no fixed BDC's on the reticle so you can always note what the drop is when you zero at specific locations. Of course for a given event the same ammo is used, as was used to zero, and note the hold overs.
All about finding what works for you
Man you knocked it out the box again. Really appreciate all the hard work and time you put into collecting all this data.
When he asks his wife for a quickie, she just give him "the look" and walks away. Great video, lots of good information. Nice to see some actual data and science applied to the subject. This video is criminally under viewed. I guess with everyone wanting a quick fix, one size fits all answer or battling their own cognitive dissonance it always will be. Well done sir, well done.
That wasn't a quickie?
My God. Reminds me of asking a engineer what time is it and he tells you how to build a watch !!
JMO
i agree 100 percent
Rite 😁
But it does help to understand all that affects the end resultant of what you are attempting to do..... As an electrical engineer, there are many variables that affect how current does in a circuit even though many variables are seldom considered by the end user of that current. It still matters to the engineer.
"Just woke up at 2am and gotta do a quick video."
That was great info. I am kind of an odd shooter. I use the cheapest ammo I can buy. This way is usually always equally bad. I have my AR's zeroed at 100 yards and can be close to 100 yards ( within a dime sized group). My .308 I hand load but still zero at 100 yards. there again to 100 yards I am of by a dime. my .243 again 100 yards and again within a dime. I have an 8mm Mouser and zeroed at 100 yards. I do this because my property you longest shot would be 100 yards. If I go to another place I know my guns and the ammo and can cover 200 to 400 yards depending on the rifle. Like you I served and used the military method but for my state and the environment I am never going to surpass 400 yards. so I keep it simple. My method works for me. It may not for someone else.
At first I thought there was no way I could sit thru such a long video. I grabbed some coffee, sunk into my chair, and was completely humbled at the complexity of the topic. I totally appreciate the over simplification of asking such a complex question of “what zero should I use?” I also appreciate the data driven discussion instead of opinions, anecdotes and “trust me” advice. Of special note is your acknowledgment of this information being used by people with nefarious intentions and breached the notion that some information is sensitive and shouldn’t necessarily be in the public domain. Personally, I completely agree!! Thanks for a reasonably deep dive into a complex topic and simplifying where possible.
Glad you enjoyed it
Never apologize or be nice.
Nice video fix the flag
Definitely noted, thanks
You should have way more subscribers. Great info.
Amazing isn’t it? With the qualification, experience and knowledge he provides yet I see “experts” who put their MBUS on backwards (and didn’t know it until people told him in the comments) get 100x more views. Crazy.
14:43 more power, not more energy you just want more of the energy while it's in the barrel. Technical but yeah, thought I'd let you know incase you care
No, energy in the form of velocity.
"You need energy to move mass, and if you need to mass to a set speed in a shorter distance you need more energy"
15:05 ish is the sentence I was referring to btw, if both mean kinetic muzzle energy the sentence is circular and makes no sense, one must have been chemically released energy..... I guess you can argue "chemically released energy in the barrel" is implied, but just saying you need higher power rounds means that and has no implication.
But I'm a mathematician, maybe y'all get sloppy with your units when it doesn't really matter.
I think thus is the best presentation on youtube btw, not trying to dog you .... I'm an organic chemistry and mathematician.....I can't help myself when it comes to units.
I didn't say "power", that would not be a proper term for this. The statement isn't circular- it is referring to a shorter barrel, where you need faster burning propellant. These are the proper and common terms for ballistics. Usage of terms can vary in different disciplines. If you'd like to deep dive the application of some of these terms, I would suggest picking up Brian Litz's Applied Ballistics books. They are very good.
Just an awful presentation. Get it together, before turning your camera on!!!
Good info, ok video... FIXXX The "Merika" flag!! before drinking coffee.. "when, flag displayed/hung vertical, stars are facing observers left"...
Definitely noted, thanks for the comment
So what should I zero my Ar?
Good troll
Dude, 1 hour plus? Your up there with conspiracy podcasts. Enjoy the info and the work you put into it, but need to plan ahead to absorb all the good info. Think about making a short to compress your point, then a 18min video explaining your point in the short, then watch this one. It's an hour and not sure it's info I want or need, so people will pass on it
I don't do cliff's notes. Either people want the instruction and the information or they don't. Plenty of people out there happy to just briefly cover things and not get in depth.
its even better when they casually say "use a 25/300 zero" but they are talking about an AK! totally different bullet lol. good luck getting that 25/300 or 50/200 on a 7.62 x 39
yep
Real quick video my a**.hahaha
Good stuff though.
Thank you for this video🙂🙂👍👍+🤝🤝
Your flag needs to be rotated 180 degrees. Look up flag protocol. Just a suggestion.
Yep, noted before in comments
I like how you said things like quick video and real quick and short in reference to this video buuuuuut is over an hour long
Wasup papa soy boricua y soy conservative
not only do you know exactly what your are talking about,you also know exactly how to explain it.
well done sir.
Thanks
Ive been watching a lot of videos and reading articles/books on this subject, and this is the first video that was grounded in logic and did not parrot the bad information of others. Thank you!!
Great insights - thank you! Like the flag, too, just needs to be flipped (stars in the upper left👍)
Sorry but I had to turn the sound off. He said “right” over four hundred times and it drove me nuts. I just wanted to know if I should zero at 25 or 50 yards.
Right
I liked this instructional video so much that I put you to the test. I got my 11-year-old daughter, who loves to shoot, to watch this instructional and you explain things so well that she had grasped all of these considerations. I asked her questions and she answered correctly. My point is that you explained things so well that even a preteen child understood the factors that go in through sighting in a rifle. This is an absolutely outstanding video! Thank you for uploading it!
excellent video. Yep quick on the amount of info. But covered very well to understand i have a lot more work to do .. Thanks..
Glad you enjoyed it
what do you recommend for a lpvo with a bdc? i realize the manufacturer wants you to zero at a specific distance (usually 100 yards) and then their holdovers are supposed to be "close" at the ranges, but with all the variables it seems like it might actually be better to have a custom zero and be within 3" at 300 yards or so and just ignore the bdc rather than relying on a bdc that might be wildly off depending on the factors.
I would suggest a standard Christmas tree reticle over a BDC. However if you have a BDC, I would recommend collecting data first, then analyzing it with a ballistic program. Once you can see the data you can decide what the best choice can be, whether it is a MPBR zero or whether you match the BDC's subtentions with the actual drop you calculate to determine what the holds actually match.
Excellent instructor,Keeps it all straight,a little fast kinda hard to keep up with,if your not on top of everything,good to watch video and return after you get familiar with some terms.but my kinds instructor.
Glad you liked the video
Thanks this was very informative. A little over a year later since this video and with a dramatic change in ammo cost and availability how do you feel about zeroes in the current state? For instance, I can't go out and just buy the .223 ammo I would like to use but rather I have to settle for something that is close. Then of course my range ammo is different from defense ammo. Again not necessarily by choice, just availability or cost limitations. Do you think having a generalized zero is acceptable right now?
I don't do generalized zeros. But collecting data on any round you buy will save you guess work and wasted rounds trying to figure it out on the range. Data collection costs you 10 rounds
20 min in and nothing at all on why to zero at a particular distance.
That... that's the point of the video.
"quick video" look down and see over an hour, and im like "how much time does he need to talk about zeros" watches video, ohhh thats why....
why dosent this video have more views!
Glad you liked it
"wanna do a real quick video"... 2hrs?
Some people's bar for a quickie is higher
Thank you sir for teaching me why my bullets were hitting 2 inches low at 2 car lengths. Now i understand holdover. Most importantly, because of this video, i now know how to shoot accurately. "Love, Peace and Soul"
Yep, anywhere inside of your near intersect for your zero, the POI will be lower than your POA
Excellent Job! I am a retired Police Firearms Instructor/ Taught at Police Academy in Buffalo, area Eire and Niagara Co. NY for 7 Years.
CRITICAL THAT ALL ZEROS, were documented on targets, out to 300 yards, serial # of AR Rifle, and ammo , manufacture, lot number, weather conditions and Instructor who zeros the AR rifle signed on each target.
Zeros completed yearly.
Great video… one comment on the Urban Tap ( I’ve never used it) but it’s my understanding it is designed for LEO in “Urban” areas Ie not shooting at 300 or even 200 yards so it’s performance is not spelled to apples and whom ever brought that ammunition to that venue obviously didn’t know what they were bringing. Mission specific ad you’re definitely award if applies to all things related.
Hey Green Eye Tactical thanks for a knowledgeable video, very helpful. I believe at 38:24 TSX is Barnes ammo. Thanks again mate. Cheers - Stu 😎
Yep, it was a Black Hills load. It was early- wasn't 100% awake, that's my excuse anyway, lol. Tanks for the comment.
I’m definitely going to check out those books you have on your table.ive been reloading for 8 years and feel like I’ve just scratched the surface. That being said I’m starting to understand much more about what I’m doing.
The Applied Ballistics books and seminars are WELL worth it.
About half way thru this.
Holy flip.
Holy tihs.
Making coffee
Back up 20 to 15 minutes (time index not angle) and continue.
Thx so far
Glad you liked it
Anyone else notice the "This documentation is confidential.." warning at the bottom of the data screens? :) Great video by the way. I had one of my new shooters watch this to try to get him to wrap his head around a rifle "Zero".
Ah, yeah copy and paste from some of my class slides. Just stupid trademark lawyer stuff. Goes out the window when you freely share it on public social media.
Very well presented with variables to consider and why they play a role. Liked and Subscribed. You and Mountain Mullets Merica should collaborate
Holyshit awesome fucking video my man definitely got a new subscriber here
Ammo
Barrel sights
Twist
..?
Optic
??
Now watching
The.
6 March 2021
It's NOW 3.15😜🤗
Outstanding. Hats off to you for pointing out the LE 50 yrd zero. My agency does that. However most of us who are in a state agency can cover cities (urban) and rural areas. Great point about the large schools and malls. I am baffled by this. Policy is policy and it's in place because it has to be CYA the agency. But we are responsible for every round that goes down range. Should be up to the individual who knows his/her patrol area. Like you pointed out in Texas. What part of Texas? Flat ranch for miles or Dallas? Policing and deadly force via firearms is complicated. Can't just lay down cover and maneuver on the bad guy (99.9% of the time). My agency is just getting around to mounting red dot on our rifles!! I've been qualifying with irons forever. Thank for the video good info and well explained. Felt like I was in training, without falling asleep.....
Thanks for a comment.
I live in McKinney
It sounds like you are already all over this, but I'd like to elaborate on some things you mentioned for the rest of the people out there.
A couple things to consider:
- When talking about maneuvering and covering, there is something often missed by LE departments . The concept that tactics are separate from use of force. When maneuvering on someone and having someone cover you, whether the cover person is shooting or even has the weapon pointed solely depends on that persons ongoing calculation of fear of serious bodily injury or death to themselves or a 3rd party.
- Another thing, to be able to take accurate shots at short distance (1-200yards should be considered short, but not close, range)- you need to know what your zero is doing to the Point Of Impact in relation with your line of sight. Unfortunately most don't know and most departments don't even have ranges that go past 50yds.
@@Greeneyetactical well said
The first sentence I had to pause and come down to the comments. " I just wanted to do a quick video here...". Quick? It's an hour 17 minutes long! Lol.
Yeah, sorry definitely wasn't planned. Just had a few slides and sat down in the morning. That was filmed in the first and only shot. Didn't know how long it was until it was over.
I zeroed 4 rifles, made coffee, fed dog, and made it back in just enough time to get the summary info. 😂 Good fun.
I understand, for CQB-work, we used a 100/Yd0, as this would be best, as it gives the tightest grouping from 25/Yds out to 250/Yds (well beyond the range for any working CQB team).
If there is anticipated engagement beyond 250/Yds, then a 36/Yd zero would be best, as it produces a tight grouping from 25-300+/Yd’s @ around a 6” spread, slightly larger than the diameter of a CD.
***This is a generalization for any grain 5.56 NATO/7.62x39/.308***
~Former USMC STA Platoon and US Department of State (CIA), Contractor
You have pretty much disregarded the entire content of the video. First, your zero has nothing to do with grouping, that is fundamentals. Second, the enemy gets the final vote in the engagement distance. Lastly- general zeroes aren't a zero. There is no generalization about it. Either you are zeroed- meaning your POI meets your POA and the desired distance or it doesn't.
Thank you for your service to our country and continued service to our community in your education of safe effective use of their firearms.
Newbie to Ar-15's here and can't decide where to zero, so bear with me...just built my first AR and plan on using irons only (plinking/home defense/protection in a shtf scenario) so realistically will not be shooting at anything beyond 200, worst case. For those of us who don't have chronos or people who shoot a particular ammo because it was on sale in bulk and can't really flip flop between ammo brands, would the following process be viable to get a precise zero for irons? Step 1...zero irons at whatever distance..25, 32, 50, whatever. Step 2..mount a cheap scope, whatever is lying around..and zero that to whatever your irons are zeroed to. Step 3...strap the rifle (safety checked of course) into a lead sled or something of the sort and have a buddy out at 200 set paper (clipped top and bottom, no backer) so the bull is centered in the crosshairs, then again at 150, 100, 50 and zero distance without moving the rifle. Shoot at your close target and you get impact points on all your targets at the same time under the same wind conditions and so on, and can tweak your zero accordingly. Yeah, it's a bit tedious to set up but avoids shooting multiple groups at varying distances under changing weather conditions. Would this be a viable way of doing it or am I pissing into the wind with this idea?
You keep saying cheap. How much ammo have you used in the process you described? How does that compare to even a cheap shooting Chrony? Also, I don't think the very complicated plan you laid out will go according to plan.
@@Greeneyetactical I haven't expended any ammo yet, as I just completed my AR build. I was looking for a do-able method for obtaining a practical zero with tangible, observable POI results without investing in a chrono or some atmospheric measuring device with bluetooth. With irons, I'm sure it's easier to sight on a target 25 or 36 or 50 yards vs 200...so I was thinking this could be a viable way to observe POI at 200 without having to actually try to sight at a target at 200. As far as this not going according to plan...would a sheet of paper every 50 yards affect the bullet flight enough to make a difference? Not being snarky, I'm asking because I usually shoot 150gr .308 and don't have experience with very high velocity 55gr bullets. I believe I only said cheap once, referring to the scope to be used as a zero verification device.
@@rosbertos Look, I did an hour and a half video on how to do something properly. You are saying "invest" in a chrono, on the low end you are looking at like $80 www.amazon.com/Caldwell-720001-Ballistic-Precision-Chronograph/dp/B00HTN5DTE/ref=sr_1_12?dchild=1&keywords=chronograph&qid=1575282243&rnid=2941120011&s=sporting-goods&sr=1-12
You don't need a bluetooth weather device. in a pinch, most ballistic apps (even the free ones) will automatically import weather data from the nearest weather station. This will still be more precise than the method you are laying out due to a removal of a large amount of human error.
Yes, and here's the short version - (understanding that I no clue of the specs of your "built" AR15).
From a 14.5" M4 rifle: (assuming ya shoot all these zeros out to the 300 yard mark)
25/300 zero = 8.5" spread highest to lowest impact on target
50/200 zero = 10" spread highest to lowest impact on target (w/ 300 being the real spread increasing point due to bullet drop)
36/300 zero = 5.5" spread highest to lowest impact on target
Given "your" max 200 yard range the optimal choice for you is the 50/200 yard Santose zero which trust me will beat the 5.5" spread above and from the muzzle to 200 yards and everywhere in-between will be in the 3" spread range (no matter whether you are shooting 55grn junk Russian crap, XM193, 62grn M855, Barnes TSX 62 or 70grn or the SF Black Hills made 77grn MK262Mod1).
ps - Note: I don't shoot crap/cheap/junk ammo in my rifles - so the spreads listed above are based on high mil-spec quality 55, 62, 70 and 77grn ammunition shot out of BCM, CMMG, Noveski high quality barreled ARs - YMMV.
I did the 36 300 and so far is accurate enough at 200 to plink off clay pigeons.. so I'm cool with that
All about finding what works for you
Hello. I'd like your opinion on something. I had zeroed my rifle with and optic at 100 yards with anticipation of a flatter trajectory from 25 to 100 with little hold over. However, when I fired my rifle at 25, I found that my shots were about 3 inches below from the bullseye. I'd figured if anything at closer ranges my shots would have been high and I'd have to hold lower as I was taught using the 25meter/yard zero that's what's to expect but the opposite happened when it was zeroed for 100. I know there's a lot of factors (ammo, barrel length, etc), but what are thoughts on actual bullet trajectory?
So, a couple things-
1: you established your near intersect at 100 yards. This puts your bullet below the line of sight from 0-100yards as it relates to height over bore.
2- Re-watch the video. My thoughts on trajectory are there
Ty sir for this new shooter no military experience, really appreciate the knowledge.
36 yard zero
You obviously did not watch this video
@@Greeneyetactical Only teasing but, I say 36 yards for red dot. Non debatable.
eh, it is. You should watch the video. It is not 36yds for a red dot.
I just found this tonight by accident. You’re spot on. This was the best video I’ve seen in a very long time.
Glad you enjoyed it.
Great video. Without a doubt one of the most knowledgeable and LOGICAL trainers I've ever seen.
Can you please add to the comments or link which items we need to purchase in order to create a tailored zero? I have access to AB software and a good rangefinder, I know I need a chronograph and maybe a kestrel meter but what else?
THANK YOU AGAIN, INCREDIBLE VIDEO
That's on my list of things to fix on the videos, but until then- if you go to my Amazon Storefront, I have gear lists on there. www.amazon.com/shop/greeneyetactical
Just watched this for my 3rd time. Always a treat to watch, thank you so much for taking the time to share this with us.
Glad you enjoyed it.
DON'T DRINK COFFEE DURING YOUR POST, IT IS OBNOXIOUS!!!
YOU NEED AN EDITOR BECAUSE YOU USE 5 TIMES AS MANY WORDS AS ARE NEEDED TO CONVEY WHAT YOU ARE TRYING TO SAY. THUS YOU ARE WASTING YOUR TIME AND MINE!!!
Not as obnoxious as all caps.
If I laser bore sight my gun at 25 yards, where should I hit at 100 yards?
Will I be low or will I be high at 100 yards.
You will be more than 4 inches high at 100 yards with a 25 yard zero
Excellent presentation! One factor I found really distracting was the use of "right". So distracting that I found myself counting. I counted for one 10 min period and there were 47 "rights". Probably just my A.D.D. self. Meant to be be constructive.
Shot it cold at 0230 in the morning, so it was just right off the top of my head.
Remember, a slower flying bullet gives gravity more time to pull on it. Fast ammo like 5.56 just has less time of flight ✈️ 🙃
Correct, that is covered in the video
@@Greeneyetactical a lot of people think it's just the weight of the projectile. They forget that a marble and bowling ball fall at the same speed
I really appreciate the time and effort you put into this... Personally I think those who are arguing about which zero is best is the keyboard commando's that live in mommy's basement, eating Cheeto's and complain to their doctor that the only place they have Jaundice is on their penis.. When the day comes that these people actually need to use these skills,, they will tuck tail and run or just hand over their weapon the same way they rolled up their sleeve in fear and became a guinea pig.. WIth that said,,, those who really are aware of the importance of this,,, are probably more so for LEO's or Schiznit hit the fan patriots.. The question that is most important is what is your mission... That will determine your zero... Are you clearing buildings were your farthest shot is maybe 50 feet? or are you out in the boonies where the closest neighbor is a mile or 2 away? And thats where I am.. Out in the boonies... I set up my AR for 0-700,, with a 100yd zero, and anything further than that goes to the more expensive ammo... which these days are over 2 bucks a round in my area... Good grief.. Unreal.. I do reload but I still shoot factory ammo..
Anyway,,, My favorite is the 100yd zero.. its easier for me to do the math on the fly,, but mostly rely on my kestrel.... That my 2 fractional cents...
Damn. This was really good. It put a lot into consideration with my new rifle optic and backup sighting. Really big thanks. :) I have a laserlyte bore sighter im using as well. Two different guns. Ruger SR22 and the optic ready M&P15 Sport II.
Good understanding of ballistics, nice chronograph on background 👌
Thanks for the class...Go Army! Will your optic zero be different fron your hard sights zero?
Yes, your Iron signs will usually be at a different height over bore (measured at the front sight post for irons) than your optic.
Bottom line... everything is a compromise. It just matters what matters to you.
Absolutely, and with data you can make an intelligent choice as to what is an acceptable compromise
So I have a 16" barrel with 1/9 twist what do I zero at with a vortex 1×6×24 eagle?????
You need to watch the video
Great video. Very informative
Glad you liked it
I'm impressed. Subbed
Glad you enjoyed it
Excellent presentation with focused content.
You've explained the topics at a level of detail so we didn't get lost in the weeds.
I'm going to sub and go back 8 episodes and devour them.
Thanks for a job well done........
In terms of your custom zero I'm not completely understanding the point of it. This is my take on things, hopefully it makes sense. You should likely go to some police documents and gather the data on the on the ranges at which shootings take place at and take the average of it. For simplicity, I am going to take your numbers from 50:22. So for my example, we will assume the avg shooting occurs at 50 yds. From there I agree that not all ammo is standardized so you would need to run a specific ammo out of a specific barrel length for this 50 yds range.
Obviously, at this point we must then zero for 50 yds, the next part is where we disagree to a point. The shooter needs to know where all the holdovers/unders for various other ranges. In your example at 50:22 I dont really see an issue with having a 50 yd zeros as long as the shooter knows there is a drop of approx 11" at 250 yds and approx 5" drop at 200 yds. I do think the shooter does need to be aware of how much the shot drops, but I would say the same thing about the custom zero you created in the same time hack 50:22 at 32 yds. The shooter should know his/her drops at various different ranges as well.
Given your background compared to mine I am going to say it is more than likely I am missing something and that I am in fact wrong here, I would just like to know how I am wrong. I opted for this public format bc I suspect other people might have this question too.
Great info, thank you very much!
Excellently presented.
I firmly believe one should custom sight each weapon for its task and its ammunition… mission specific.
( former military and current state certified instructor)
Do you mind whipping up some sort of sheet we can use with all the information you deem necessary to find our zero that we can fill in and use on our own?
Any ballistic app will ask you for the information it needs to calculate
Flag is displayed backwards
Yep, someone pointed that out- didn't consider it as I was just covering the office doors. To be fair- they are glass so it is correct from the outside of the office.....
@@Greeneyetactical Got to love the internet...
Thought I own several AR-15s & AR-10s, I'm not a really a "tactical" guy, just an avid rifleman who shoots several calibers from several different rifles in each caliber, in several platforms, chasing the best performance I can get out of each weapon for the sheer fun and technical learning I get from it. Of course I also do it to fill the freezer but in all honesty I've never taken an elk past 115 yards so how fussy does one have to be hit vitals on a critter that large that close? That said I do try to record as much data as possible when I'm working out a load for a certain rifle/optic setup. Weather is a factor that plays heavily, making my data collection less consistent, my work more drawn out in time and rounds. I've never shot at an indoor rifle range which would eliminate the weather variable. As far as I know we've only had one in all of Montana and it didn't last long before the Gallatin County Sheriff's Office bought it out for their sole use leaving the shooting public out in the cold, LITERALLY.. Our tax dollars at work, the purchase wasn't even put up for a vote which caused much resentment in the local shooting community for being shut out on two weeks notice, some losing money on their season passes.. Whining aside, you did a great video here that likely opened many eyes and minds. I congratulate you on your fine work well presented and wish you the very best of success in your business.
I sighted my M16 dead on at 200 yds with bottom sights. Anything between 300 and 500 yds I'd flip up long range and either aim dead on for 300-400 or shoot for the head at 400-500. Totally contraditive to what USMC was teaching me and it worked for me.
I want a 2.6 (hob of A2 sites) eventually. Trying to dial it in at 64 (with so many approximated variables I figure guess and check will be the best way to find the zeros that give me that)
Right now I cannot outshoot the weapon.
pretty new to rifles but I like the Point Blank Radius as a free variable and finding the zeros to give me that would give me my best shot in an adrenaline filled expirience.
I hope to find my Point Blank Range eventually, but I need to be able to get a decent group at a couple 100 yards with irons first
For this process- the trajectory is analyzed before the grouping. You measure velocity, environment, and critical rifle measurements and run it through software. Grouping just needs to be tight before the application of the zero can be made mechanically through sight adjustment.
As a mathematician I am interested in studying these models and derivations. But like you said *gotta be able to get a decent group first*
That's why I figure going through the above process and narrowing in on it based on my holdovers (plus it will help me more quickly adapt to different holdovers, and get a feel for maxima, far zero, pbradius, pbrange, with respect to near zero.
Then I can compare the mathematical results (might make a decent paper, diving in from a mathematical perspective. I'm sure it cones down to differential equations ..... everything does. I'm just not quite sure the current model of drag, I know at low velocity it raises with it, but higher up it rises with the square of velocity. But once I look into it I'll know how to work with it
I would recommend picking up the Applied Ballistics book series by Brian Litz
Been watching you for a little while very informative thank you very much.
Glad you enjoyed it
So basically they should make sights that have maybe 3 saved settings that can quickly be dropped into, kinda like having personalized driver seat settings in a car. You click person 1, 2, or 3 and it moves the seat to that saved position..
That could be useful for having different saved zeros for various ammunition
This was phenomenal. Great job.
Glad you found it useful
this video is money, thanks for explaining it better.
Glad it was helpful
Excellent. You certainly have your feces cohesives!! Best way to say ,"Thank you"... Liked & SUBSCRIBED
Great info! I enjoy iron sights (while I still can) and my intended target is relatively small and can be located at close to moderately long range. I choose a 36 yard zero so my max bullet rise is about 4” at 200 yards. I like this zero with iron sights because I can lollipop a small target out to 300 yards. The closer the target, the easier it is for me to aim inside my target. At 300 yards I just put the very small target on the front post. At that distance I must confirm it’s really a groundhog and not a clump of dark earth. 😁
Dude, great video. I hate all the crazy claims that this certain "magic zero" will keep point of aim at point of impact to 500 yards. Thanks, subscribed.
Why do everyone on youtube use the term "QUICK VIDEO" ? Ive never seen a quick video. Then theres this dude with a hour and 17 min video...shits crazy
Some guys have different perspectives as to what qualifies as a quickie ;)
I think you're talking here about ballistics that are more applicable to long range/high precision shooting that are not achievable with auto and semi auto rifles, unless you got DMR. You should be happy with 1 inch group @ 300 meters with AR platform based rifle. 300-600 meters is DMR territory.
You didn't watch the video
All I can say is excellent excellent excellent
He would make a good scientist...after all this coffee and data, the multitude of variables considered zero is inconclusive...
click thumbnail, see length is 1hour17min... "hey guys wanted to do a quick video..." * looks back at video length * bro...
Welcome to the channel lol