If you are purely testing the scope, you can do this without firing a shot I think. Just put the rifle in a vise or just the scope if it's not yet attached. Then at a known distance setup a target and mark on that the zero/baseline and increments in terms of MOA or Mils for that distance. Then you can dial it in on the scope and see if it lines up with the increments you've made on the target.
Haven't had a chance to test if it holds zero, but mounts just fine and has nice clear glass. Centered vertically true to a plumb line with the crosshairs which is always a plus!It's a great th-cam.com/users/postUgkxc4K63Fd5LglDMObu7-Bgapxp_ef0W8hE scope. There's no parallax adjustment or focus ring, so may be limited to 3-7x, have to see how it is on the range. Also be aware that the rings are "look through" so you can still use irons, but they are really tall if you only intend to use the optics. On a 22LR no biggie since I'm not shooting competitions or worried about a hard cheek press. Will boresight and range test, if all goes well, I'll leave it at that!
Also what I like to do is the "box test". You draw an imaginary square, dialing in an equal amount of clicks up, right, down, left (or otherwise). If you end up at the same spot you began, you know the scope is tracking well. If you draw out the square with known length (complying with a certain amount of mils/MOA for the distance you will be shooting at) and just dial in the clicks, you also know that what you dial in is the correct length of travel you'll get down range. So the scope is dialing in the POI correctly.
What an excellent video! It not only taught a valuable technique, but it taught why the technique works so we understand what we're doing. Knowing how to do something is a technician level of understanding. Knowing why to do something is an engineering level of understanding. This video was exactly what I'd expect for Applied Ballistics: The Science of Accuracy. Thank you!
i dont mean to be so offtopic but does anybody know a tool to get back into an Instagram account..? I was dumb forgot the login password. I would love any help you can offer me!
@Kelvin Ameer I really appreciate your reply. I got to the site through google and Im trying it out now. I see it takes a while so I will reply here later when my account password hopefully is recovered.
For anyone not very skilled and/or has a low-powered scope, this can just as easily be done at 50 yards, even 25 yards. Just need to adjust the MOA equations as needed. Good video and information overall.
Great video! One thing if I may, when you measured with the Range finders, you were physically further back on the mat, from where you anchored the tape measure. It actually looks like the difference in distance would favor the measurements given by the first 2 range finders. I only mention it as it's good to know which devices are most accurate. Great video again, and ty for the content!
I've officially watched every tall target test video on the internet Even a more recent one that applied ballistics put out. And this one is still the best.
Thank you so much for this information! I've been contemplating whether my scope is tracking accurately and being able to mitigate installation or hardware errors using this approach is very helpful!
That's very interesting. I learned something new today and I always appreciate learning something new. Especially when it has to come to shooting. I can honestly say I do not know a lot about long distance shooting but I would definitely like to learn more about it. I am interested in purchasing my first long range precision rifle and I am highly considering a Ruger precision rifle to see if it is something I want to get further involved in. Thank you for all the great information
EXCELLENT presentation -- you just answered a couple of problems I was dealing with and one of your other clips raised a couple of new ones for me.... homework. I just ordered one of your books. Thank you!
Excellent video. I have been using a plumb bob instead of a level to set target. It worked for the Egyptians. and it transports easier. Thanks for sharing your abundant knowledge.
Any Level needs to be calibrated, because the bubble is usually Not parallel with the straight edge due to manufacturing costs. So, to check if bubble is True, test it. Select a flat level surface, e.g. the floor or a Vertical surface, e.g. door jamb. Then, Mark the position of a level on a selected surface, so that, the level can be reversed into the marks carefully. Notice, the bubble changes position. Then, split the difference in the graduations with the bubble to obtain the correct match of the bubble to the level. The plumb bob is easiest to mark 2 points vertically along the string after the bob is dampened out from swinging,
@@mikevallee3916 that's why you buy American made levels but I've never had a level that needed to be calibrated. Usually they are sent to the Metrology Department. Unless it has metal dust on the magnets or was dropped or accidentally arched while welding lol
Always wanting to start with a positive, the shooting and rig were impressive!! Scopes are precision instruments and a shot test is not a precision test method, e.g., shooter imperfections, ammo consistency, rifle imperfections, atmospherics, and cartridge temperature.
Thanks for the vid. Of course, if you've got a FFP scope with a graduated reticle in the same format as your turrets (mil/mil or moa/moa) you don't need to measure the distance to the target at all- just use the scope to check its own tracking.
Good info. I usually set my target up exactly 95.5 yards from my rifle, so that 1 MOA will equal 1 inch at the target. 30 MOA will travel up 30 inches. Just easy for me. But it is good to know how to figure at any distance.
Brian very nice demo EXCEPT! Your range finders were referenced at the butt end of the weapon. Where as the tape measure was referenced at the tip of the weapon's barrel!…..leaving a approx. 4' differential….Important because of the topic of different measuring tools giving different measurements ….the same tool will give a differential with that application…..
Amazing. This is exactly what I had done years ago to verify that my scope was mounted correctly. Excellent video. I was not surprised about all three rangefinders being wrong. The only one I trust is a Military LASER range finder. If they're off by 2 yards at 100 yards imagine at 1000.
@@diamondstandard7794 Never said it didn't work, buddy. But I know for a fact that make and model stretches, which challenges the tolorance the accuracy.
The first range finder was probably correct within inches, when he held his tape it was closer to the target than when he ranged with the finders. Great video thanks, which range finders are those in the order you used them?
1 mil at 100 meters is 10cm (or 3.93701 inches). Converting this to yards gives us 3.93701/1.09361=3.6 inches at 100 yds. Dividing it by 100 gives us our constant: 0.036.
7:00 First off I think this was a great and informative video but I'm surprised you didn't pre-measure your distance and shoot from exactly 100 yds in order to help make the math a little easier. As retired military I constantly heard the acronym of the 7 P's - Proper Planning and Preparation Prevents Piss Poor Performance. But seriously, still and great video and I did learn something new and useful that I will use in the future.
@disillusioned070 -- I suspect he used a non-100 yard distance on purpose to show how to account for that. His example of using three Laser Rangefinders was likely done to demonstrate that you can't just them. Same for attaching your target to the target frame.
Brian, one more question please. How can you be sure that the impact point variance of the groups using the second rifle were not due to a wind shift? Thanks for your reply.
Excellent video and great info. I have a question, I noticed you used two different rifles with different barrel lengths, will that make a difference on the point of impact? Where the rifles the same caliber and same grain bullet? Thanks.
This is the best, most informative and helpful video for long range I have ever watched!! you have explained so well and made it easy to understand through the technique and the way you have shown it through your vid. Credit to you mate!! Can you please tell me if that formula will worth when using the mills system, not just the MOA system? thank you!
I am curious to know whether the parabola difference between the 308 and the 243 could account for the 1 inch difference of the 30 MOA adjustment test...
Would it be a good idea to mention to do a scope tracking test at the beginning of the video ( before mounting scope to rifle and go to the trouble of going through tall target test). Anyway I am still learning and just a beginner.
In order to eliminate shooter error, can you put the scope in a vise, make a vertical line with 30 mil hash marks, aim at the dot, crank up 30 mils and see if it lines up?
Where do you get the unit constant of .01047? That's for yards correct? What would the constant for feet instead of yards? Also what would be the constant for Mils? I'm thinking you can do this test without shooting shots. You can do it indoors by locking the scope in some sort of vice to eliminate ANY movement, and setup your target 30 feet way.
Where do you actually measure from? The chamber of the rifle or the end of the barrel? I noticed that you ranged from basically behind the rifle but started the tape closer to the front.
Just from a recording standpoint: What's the best way you've found to get clear footage of the impacts along the full length of the target? All these widescreen video formats are really putting a damper on vertical recording.
Mils works with inches and cm equally well. The equation is the same with a different constant. Range * MRAD * 0.001 = distance Eg 1000 yd * 1 MRAD * 0.001 = 1 yd 100 m * 1 MRAD *0.001 = 0.1 m
At the 11:30 mark you mention rotating the level instead of rotating the scope. If we have already used a plumb line to verify the scope reticle and level are correct, shouldn’t we adjust the entire system?
Does the gun position and different barrel lengths affect the impact points? Because, 2nd rifle had longer barrel, and was closer to target as a result.
What a shame it will be if this administration goes through with their recent anti-gun policies and prevents people from watching great training videos like this. This is a new hobby for me and I'm enjoying it so far.
@@TheNSSF I am a carpenter by trade so I kind of understand plumb and level and I have been shooting for years 100 yards and in lol and I am just getting into Long range i have learned more useful information from your video than many others combined
Once you have your vertical correction factor (if any) using the tall target test, do you assume the same correction for windage or do you also run a wide target test?
The Mils formula: Range distance x # of mils x .0.03599 (mils constant for yards) or 0.03936 (mils constant for meters), example: 100 yds x 3 mils x 0.3599 = 10.797
I have watched a few zeroing videos at 100 yards. What I don’t understand is, why is it ok to zero windage in open where there a wind factor that is no measured or accounted for?
+Todd B at 100yds I get 108" of shift for 10 mils (300" x 10 x .036 = 108"). Shouldn't this be a shift of 36" at 100yds for 10 mils? what did I mess up?
+DFOOSKING range (in yards) X dialed elevation X Constant. you converted the 100 yards to 300 feet which throws the formula off. 100*10*.036=36 also this can be used overseas in meters as well, 100meters * adjustment in mils * .01 = expected adjustment (in CM). all the constant is is 1/100th of the value of 1 unit of measurement. so 1 MOA @ 100 yards = 1.047", constant is .01047. a mil is 3.6 inches @ 100 yards so .036. a mil is 1cm at 100 meters so the constant is .01cm 1MOA is 2.91 CM @ 100 meters so constant is .0291CM i think im correct someone smarter then me will put me in my place im sure lol
So everyone fudging/"truing" their velocity numbers and/or BC's in their ballistics apps may actually have had inaccurate scope tracking or adjustment increments. Cold Shot LLC's MOAB/MRAB Elevation Adjustable Scope Mount is looking pretty good now! Long range shooting is hard :( Only future energy weapons will get rid of all that complexity.
I know this is a old video. What if your shots aren't hitting all dead center and you have a grouping. You will have one shot on each side of the line. What do you do if your group moves the side?
For me, a 100 yard bunny makes me smile. I now need to think about the level error warnings I get with my pulsar XM38 thermal scope as I get a warning if the scope is not level BUT, I now need to know if the error marker kicks in at the same Plus and Minus angle else, using the LACK of a marker as an indication of'level', can still mean my gun is tilted over a tad. Remember, I am shooting in pitch dark and a bubble level is no good to me... Of course, I could simply do some tests at my more typical 50 yard zero to learn whether the misses I have experienced are a levelling of the scope issue, or something else.. My NEXT issue is with my .223 reloads which, by comparison with yours at 100 yards, are literally pants in comparison. Grief, I though I was doing well... Weapons Grade Respect from the UK.
Where is the starting point for your 100 yard (92.66 yd) measurement? From the end of the barrel? End of the scope? Bolt face? Gravity doesn't start affecting the bullet until it leaves the barrel. 92.66 yards means 92 yards plus 2 feet. The barrel itself is around 2' long.
So how can we do this accurately with a Warner rear #2 , and a Riles 22mm front sight. Me and my 6inch Starrett level have been going nuts trying to get the front sight plane to be parallel to the rear.
if you do not have a custom turret for your loads, why would you not just dial the drop and see if the scope is right o, instead of adding the accuracy of the gun?
ok so this may be a stupid question with an obvious answer but how do you adjust the second rifle. Now that we know its only 28" on the tall target test how do you correct that? do you always just add 4% on every adjustment or is it possible to just reset zero and add 4%?
I don't know what app you're using, but my applied ballistics one has a sight offset, and that would be if you have your scope offset to the left of the right. Think ww2 Russian mosin nagant. Then there is a correction factor. Using the math he goes over in the video, determine if your scope tracks or not. Then you put in what ever it ends up being. In his case 1.039. Your app will take care of moa, mils or whatever.
I wonder how accurate the tape is. We use tapes just like that in construction and find that they sill stretch an inch or so over 50', let alone 300'. It seams to me that the two cheaper ones were pretty close. Just my anecdotal experience.
Years later still the best long range rifle zeroing video out there
@Walru5hunter: Not bashing, its just not purely a 'zero' exercise as it is a vertical alignment validation...
The bad thing for me with this video is. This video came out 7 years ago and I'm just now learning this.... Better late then never.
Brian is so badass, he doesn't even have to cycle the bolt to fire 3 shots.
If you are purely testing the scope, you can do this without firing a shot I think.
Just put the rifle in a vise or just the scope if it's not yet attached. Then at a known distance setup a target and mark on that the zero/baseline and increments in terms of MOA or Mils for that distance.
Then you can dial it in on the scope and see if it lines up with the increments you've made on the target.
Haven't had a chance to test if it holds zero, but mounts just fine and has nice clear glass. Centered vertically true to a plumb line with the crosshairs which is always a plus!It's a great th-cam.com/users/postUgkxc4K63Fd5LglDMObu7-Bgapxp_ef0W8hE scope. There's no parallax adjustment or focus ring, so may be limited to 3-7x, have to see how it is on the range. Also be aware that the rings are "look through" so you can still use irons, but they are really tall if you only intend to use the optics. On a 22LR no biggie since I'm not shooting competitions or worried about a hard cheek press. Will boresight and range test, if all goes well, I'll leave it at that!
Also what I like to do is the "box test". You draw an imaginary square, dialing in an equal amount of clicks up, right, down, left (or otherwise). If you end up at the same spot you began, you know the scope is tracking well.
If you draw out the square with known length (complying with a certain amount of mils/MOA for the distance you will be shooting at) and just dial in the clicks, you also know that what you dial in is the correct length of travel you'll get down range.
So the scope is dialing in the POI correctly.
This is one of the most useful videos I have ever watched. Thank you for this great content! It made me take notes for future reference.
I agree! 100%
It made you "Take Notes?" Like um, Why, EXACTLY would you need to do that?
@@Steve-O_462 to remember things? just a guess
What an excellent video! It not only taught a valuable technique, but it taught why the technique works so we understand what we're doing. Knowing how to do something is a technician level of understanding. Knowing why to do something is an engineering level of understanding. This video was exactly what I'd expect for Applied Ballistics: The Science of Accuracy. Thank you!
i dont mean to be so offtopic but does anybody know a tool to get back into an Instagram account..?
I was dumb forgot the login password. I would love any help you can offer me!
@Arlo Desmond Instablaster :)
@Kelvin Ameer I really appreciate your reply. I got to the site through google and Im trying it out now.
I see it takes a while so I will reply here later when my account password hopefully is recovered.
@Kelvin Ameer it did the trick and I now got access to my account again. I'm so happy!
Thank you so much you saved my ass :D
@Arlo Desmond Happy to help :D
For anyone not very skilled and/or has a low-powered scope, this can just as easily be done at 50 yards, even 25 yards. Just need to adjust the MOA equations as needed. Good video and information overall.
Great video! One thing if I may, when you measured with the Range finders, you were physically further back on the mat, from where you anchored the tape measure. It actually looks like the difference in distance would favor the measurements given by the first 2 range finders. I only mention it as it's good to know which devices are most accurate.
Great video again, and ty for the content!
I've officially watched every tall target test video on the internet Even a more recent one that applied ballistics put out. And this one is still the best.
Love the fact that the cheaper rangefinders were the closest to the right range :) Great vid guys!
Fun fact: average the 3 range finders and you almost land exactly on the distance he's at from the target.
@@denmanfite3156 So the Solution isn't to buy a 1000 dollar rangefinder. It's to buy 5 different 200 dollar range finders and average all of them XD.
I never would have thought of this test... I would just keep assuming that it would some other variable and not my scope. Thanks, Brian!
Thank you so much for this information! I've been contemplating whether my scope is tracking accurately and being able to mitigate installation or hardware errors using this approach is very helpful!
Very impressive. Intelligent and articulate. A pleasure to watch.
Kevin Owens sent me here. This is a great video. Thank you!
That's very interesting. I learned something new today and I always appreciate learning something new. Especially when it has to come to shooting. I can honestly say I do not know a lot about long distance shooting but I would definitely like to learn more about it. I am interested in purchasing my first long range precision rifle and I am highly considering a Ruger precision rifle to see if it is something I want to get further involved in. Thank you for all the great information
EXCELLENT presentation -- you just answered a couple of problems I was dealing with and one of your other clips raised a couple of new ones for me.... homework. I just ordered one of your books. Thank you!
Excellent video. I have been using a plumb bob instead of a level to set target. It worked for the Egyptians. and it transports easier. Thanks for sharing your abundant knowledge.
Any Level needs to be calibrated, because the bubble is usually Not parallel with the straight edge due to manufacturing costs. So, to check if bubble is True, test it. Select a flat level surface, e.g. the floor or a Vertical surface, e.g. door jamb. Then, Mark the position of a level on a selected surface, so that, the level can be reversed into the marks carefully. Notice, the bubble changes position. Then, split the difference in the graduations with the bubble to obtain the correct match of the bubble to the level. The plumb bob is easiest to mark 2 points vertically along the string after the bob is dampened out from swinging,
@@mikevallee3916 that's why you buy American made levels but I've never had a level that needed to be calibrated. Usually they are sent to the Metrology Department. Unless it has metal dust on the magnets or was dropped or accidentally arched while welding lol
Great lesson
Awesome tutorial ... I have heard of the vertical target but it was not explained like you explained it ... thank you.
Awesome info!! I LOVE all the stuff that Bryan does- He's a genius!!
Great video. Would the same formula work for MRAD?
Always wanting to start with a positive, the shooting and rig were impressive!!
Scopes are precision instruments and a shot test is not a precision test method, e.g., shooter imperfections, ammo consistency, rifle imperfections, atmospherics, and cartridge temperature.
Excellent test for level before going long range, thank you for sharing.
Thanks for the vid.
Of course, if you've got a FFP scope with a graduated reticle in the same format as your turrets (mil/mil or moa/moa) you don't need to measure the distance to the target at all- just use the scope to check its own tracking.
A Shutler explain! Lol sounds a lot easier!
Good info. I usually set my target up exactly 95.5 yards from my rifle, so that 1 MOA will equal 1 inch at the target. 30 MOA will travel up 30 inches. Just easy for me. But it is good to know how to figure at any distance.
Brian very nice demo EXCEPT! Your range finders were referenced at the butt end of the weapon. Where as the tape measure was referenced at the tip of the weapon's barrel!…..leaving a approx. 4' differential….Important because of the topic
of different measuring tools giving different measurements ….the same tool will give a differential with that application…..
Amazing. This is exactly what I had done years ago to verify that my scope was mounted correctly. Excellent video.
I was not surprised about all three rangefinders being wrong. The only one I trust is a Military LASER range finder. If they're off by 2 yards at 100 yards imagine at 1000.
I'm not exactly sure all three were wrong. A fiberglass tape like that will stretch several inches over 50' let alone 300'.
@@Caderic no that tape works buddy. I work in precision and use those tapes to layout heavy machines all the time
@@diamondstandard7794 Never said it didn't work, buddy. But I know for a fact that make and model stretches, which challenges the tolorance the accuracy.
The first range finder was probably correct within inches, when he held his tape it was closer to the target than when he ranged with the finders. Great video thanks, which range finders are those in the order you used them?
This really opened my eyes! Thank you!!
Thanks for a really excellent video! Do you please have the equivalent MIL radian constant for the MIL radian calcs please?
1 mil at 100 meters is 10cm (or 3.93701 inches). Converting this to yards gives us 3.93701/1.09361=3.6 inches at 100 yds. Dividing it by 100 gives us our constant: 0.036.
7:00 First off I think this was a great and informative video but I'm surprised you didn't pre-measure your distance and shoot from exactly 100 yds in order to help make the math a little easier. As retired military I constantly heard the acronym of the 7 P's - Proper Planning and Preparation Prevents Piss Poor Performance. But seriously, still and great video and I did learn something new and useful that I will use in the future.
@disillusioned070 -- I suspect he used a non-100 yard distance on purpose to show how to account for that. His example of using three Laser Rangefinders was likely done to demonstrate that you can't just them. Same for attaching your target to the target frame.
Excellent video. Thanks Bryan.
In one ear and straight out the other. I will watch again since I am a slow learner.
Thank you for this excellent video.
With multiple shots this can also be used to confirm load trajectory at 100 yards.
Good bit of info... will be doing this to all my scopes.
Great video ill make sure to check my scopes on my next outing.
👍 Thanks for the very informative video!
If you staple the target material up, use the level as a guide for marking target line.
Very helpful video. Do you have the formula equation for using a milrad scope?
Great test. Very well explained. Just make sure that your carpenters level is true before you set your target with it 👍🏻
True that....they make some pretty shitty levels out there.
Excellent tutorial Very good shooting/groupings
Brian, one more question please. How can you be sure that the impact point variance of the groups using the second rifle were not due to a wind shift? Thanks for your reply.
Thank you for this. Cant wait to tall test my first rifle and scope ever.
Do you have a video on how to use the correction factor at 200 or 300 yards?
Excellent video and great info. I have a question, I noticed you used two different rifles with different barrel lengths, will that make a difference on the point of impact? Where the rifles the same caliber and same grain bullet? Thanks.
There is no difference because they are angular measurements, take into account that the first group and the second one are fired by the same rifle.
Thanks for the very informative video. Why did I not think of this before? I have to go test my scopes and rifles soon.
Great video....headed to range to check this. May explain a lot!
Thanks for all the tips.
This is the best, most informative and helpful video for long range I have ever watched!! you have explained so well and made it easy to understand through the technique and the way you have shown it through your vid. Credit to you mate!! Can you please tell me if that formula will worth when using the mills system, not just the MOA system? thank you!
Thanks very much, excellent explanation 👍.
Thank you for this excellent video. However, it appears you had placed the tape measure over a foot ahead of where the range finders were held.
I am curious to know whether the parabola difference between the 308 and the 243 could account for the 1 inch difference of the 30 MOA adjustment test...
Great content , very informative .
Would it be a good idea to mention to do a scope tracking test at the beginning of the video ( before mounting scope to rifle and go to the trouble of going through tall target test). Anyway I am still learning and just a beginner.
In order to eliminate shooter error, can you put the scope in a vise, make a vertical line with 30 mil hash marks, aim at the dot, crank up 30 mils and see if it lines up?
You can, but make sure you don't have mils and MOA confused.
that won't test the scope alignment on the rifle.
Extremely usefull. I have a grendel and a 308 and iys meant to be long range. Tine to hit the range to do this test and see if i track correct
Thanks for sharing this!
well done
Where do you get the unit constant of .01047? That's for yards correct? What would the constant for feet instead of yards? Also what would be the constant for Mils? I'm thinking you can do this test without shooting shots. You can do it indoors by locking the scope in some sort of vice to eliminate ANY movement, and setup your target 30 feet way.
How much of that correction factor is from the objective lens of the scope and the muzzle being on different parallel-with-target planes?
Great info
Thank you!
Where do you actually measure from?
The chamber of the rifle or the end of the barrel?
I noticed that you ranged from basically behind the rifle but started the tape closer to the front.
Just from a recording standpoint:
What's the best way you've found to get clear footage of the impacts along the full length of the target? All these widescreen video formats are really putting a damper on vertical recording.
I love this video man. Great info and fantastic test.
Very useful! Thanx a lot.
Very good video!! This definitely help alot, thumbs up!
Knowledge is everything 👍
Do the same equations work for mils if you use meters/cm? Thanks
Same question. Anyone find the answer?
Mils works with inches and cm equally well. The equation is the same with a different constant.
Range * MRAD * 0.001 = distance
Eg
1000 yd * 1 MRAD * 0.001 = 1 yd
100 m * 1 MRAD *0.001 = 0.1 m
Excellent video, thanks!
measure the distance from the turrets or the muzzle? Little to no difference, just curious as to what would be the ideal spot.
Unless you are hunting with a tape measure, shouldn't you calibrate based on whatever your laser range finder says?
*easy to use and very well*
Great informative video!
At the 11:30 mark you mention rotating the level instead of rotating the scope. If we have already used a plumb line to verify the scope reticle and level are correct, shouldn’t we adjust the entire system?
Does the gun position and different barrel lengths affect the impact points? Because, 2nd rifle had longer barrel, and was closer to target as a result.
is that at Ben Avery?
What a shame it will be if this administration goes through with their recent anti-gun policies and prevents people from watching great training videos like this. This is a new hobby for me and I'm enjoying it so far.
Good explanation and good math made easy
Excellent information
Thank you! Glad you liked the video.
@@TheNSSF I am a carpenter by trade so I kind of understand plumb and level and I have been shooting for years 100 yards and in lol and I am just getting into Long range i have learned more useful information from your video than many others combined
@@kyletyson8129 We are happy our videos are helping you.
great video!
Once you have your vertical correction factor (if any) using the tall target test, do you assume the same correction for windage or do you also run a wide target test?
Excellent video
another great drill is a box drill. The box drill checks elevation tracking and windage tracking.
The Mils formula: Range distance x # of mils x .0.03599 (mils constant for yards) or 0.03936 (mils constant for meters), example: 100 yds x 3 mils x 0.3599 = 10.797
can i ask, for the correction factor, would you mind sharing the equation if working in metric world, with centimetre, Meters and Mills (MRAD).
Thats why the Athena BPR reticle is king, no need to dial and the grid shows you exactly where you’re at vertically and 100% to scale
I have watched a few zeroing videos at 100 yards. What I don’t understand is, why is it ok to zero windage in open where there a wind factor that is no measured or accounted for?
Excellent video!!
Thak you verrrry much!!
great video 👍
amazing video!!
Do you have the formulas for people using Mils? If it is posted here and i missed it I'm sorry.
+alphawolf146714 -- Instead of the number 0.01047, use 0.036, in his example.
Thank you
+Todd B at 100yds I get 108" of shift for 10 mils (300" x 10 x .036 = 108").
Shouldn't this be a shift of 36" at 100yds for 10 mils?
what did I mess up?
+DFOOSKING
range (in yards) X dialed elevation X Constant.
you converted the 100 yards to 300 feet which throws the formula off.
100*10*.036=36
also this can be used overseas in meters as well,
100meters * adjustment in mils * .01 = expected adjustment (in CM).
all the constant is is 1/100th of the value of 1 unit of measurement. so 1 MOA @ 100 yards = 1.047", constant is .01047.
a mil is 3.6 inches @ 100 yards so .036.
a mil is 1cm at 100 meters so the constant is .01cm
1MOA is 2.91 CM @ 100 meters so constant is .0291CM
i think im correct someone smarter then me will put me in my place im sure lol
So everyone fudging/"truing" their velocity numbers and/or BC's in their ballistics apps may actually have had inaccurate scope tracking or adjustment increments.
Cold Shot LLC's MOAB/MRAB Elevation Adjustable Scope Mount is looking pretty good now!
Long range shooting is hard :( Only future energy weapons will get rid of all that complexity.
I know this is a old video. What if your shots aren't hitting all dead center and you have a grouping. You will have one shot on each side of the line. What do you do if your group moves the side?
No expert here, but that could mean your scope is not perfectly vertical. Fit a scope level and use it. Hope this helps.
For me, a 100 yard bunny makes me smile.
I now need to think about the level error warnings I get with my pulsar XM38 thermal scope as I get a warning if the scope is not level BUT, I now need to know if the error marker kicks in at the same Plus and Minus angle else, using the LACK of a marker as an indication of'level', can still mean my gun is tilted over a tad.
Remember, I am shooting in pitch dark and a bubble level is no good to me...
Of course, I could simply do some tests at my more typical 50 yard zero to learn whether the misses I have experienced are a levelling of the scope issue, or something else..
My NEXT issue is with my .223 reloads which, by comparison with yours at 100 yards, are literally pants in comparison.
Grief, I though I was doing well...
Weapons Grade Respect from the UK.
Where is the starting point for your 100 yard (92.66 yd) measurement? From the end of the barrel? End of the scope? Bolt face?
Gravity doesn't start affecting the bullet until it leaves the barrel.
92.66 yards means 92 yards plus 2 feet. The barrel itself is around 2' long.
So how can we do this accurately with a Warner rear #2 , and a Riles 22mm front sight. Me and my 6inch Starrett level have been going nuts trying to get the front sight plane to be parallel to the rear.
if you do not have a custom turret for your loads, why would you not just dial the drop and see if the scope is right o, instead of adding the accuracy of the gun?
ok so this may be a stupid question with an obvious answer but how do you adjust the second rifle. Now that we know its only 28" on the tall target test how do you correct that? do you always just add 4% on every adjustment or is it possible to just reset zero and add 4%?
there should be a correction factor section in your ballistic app. You would just enter 4%, or the 1.039. That should take care of it.
TheBobfriday would out be called the horizontal and vertical offset? and if so what would the 1.039 be? inches, moa,mrad?
I don't know what app you're using, but my applied ballistics one has a sight offset, and that would be if you have your scope offset to the left of the right. Think ww2 Russian mosin nagant. Then there is a correction factor. Using the math he goes over in the video, determine if your scope tracks or not. Then you put in what ever it ends up being. In his case 1.039. Your app will take care of moa, mils or whatever.
learning began at 41 seconds. sweet
I wonder how accurate the tape is. We use tapes just like that in construction and find that they sill stretch an inch or so over 50', let alone 300'. It seams to me that the two cheaper ones were pretty close. Just my anecdotal experience.
is there a way then, if your scope tracking is off, to input this on the kestrel Elite so that the solver solves for this issue?