How To Read Wind | Try This One Old School Trick!
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- เผยแพร่เมื่อ 2 ก.ค. 2024
- One old school trick that will teach you how to read wind. Today Joel shows you how to evaluate the wind you're seeing on the range and use an old-school formula to accurately dope the wind for long range shooting.
Formula =
Range in yards times the wind in mph divided by the wind constant = wind hold in moa. Multiple that number again by .3 to get the wind hold in mils. To find the wind constant for your caliber use google. ;)
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True heart of a marksman shares his thoughts and fair ideas! Really appreciated!
Thanks for watching!
Great job! Thank you Sir 👍💯🔥
Really appreciate your videos.
Thanks Paul!
Nice impact. You got in the PRO side which is good.
Last week in TN I simply used the rough estimator describe by Frank Galli of .1 MIL or every 100 yard for a 5mph wind. So I held .5 at 500 and .9 at 900. Worked very nicely. A bit easier than using a Kestrel or calculator. Might want to check it out.
Gary Larson already made a video about that method a few weeks ago. Works well.
@@PrecisionRifleNetwork What video is that?
How do you calculate your constant
This was exceptional.
Thanks
I just use the frank galli. Method. Use the first number in the g1 bc and that’s your 5mph bracket double for 10 triple for 15. He explains it in his pod cast. It works for me and is always .1 from my ballistics calculator. Or right on. Check it out.
Could You link the podcast Please?
Hey i am completely green it that subject, never had a sniper scope in my hand, please explain or refer to video explaining how did you translate that math into a scope, how did you use that final number on a reticle or on those knobs on the scope. Thank you!
How do you figure out what your constant is on a 6.5?
Yea, he just pulls that magic number 14 out of his ass
Awesome video. Good tips. I predicted you would hit too far left. I think you guessed the wind spot on in this case. I believe your constant is incorrect. With 147g hornady match, my 500 yd constant is 18. 300-400yd is 20. 800-1000yd is 17. At 500 that would be a wind call of approx 2 moa instead of 2.5. Regardless your load, I wouldn't think it would calculate that much of a difference in constant. (D x W)/windcall = your constant; if the data in your ballistics chart is input correctly.
Crybaby Blues I can’t argue with a math guy. Not that I don’t “want” to. I simply can’t. lol
I got my constant for that gun and ammo from a DMR class I took with The Site. Jim Kauber is an ex Seal Sniper.
I’m not saying you’re wrong or that he’s infallible, just that he knows more than me and I’ll take his word for it. lol
Jim can be 10x better than me and still make a small mathematical error. lol Not being argumentative, just trying to fix one of your variables. We know its not a constant, because the number shrinks continuously with increase in distance. So we choose a midway point (constant) for practicality. You reverse the math in your Ballistics charts using your wind formula, ie: 7x5=35/2.5moa=14......7x5=35/1.96moa=17.85...etc, to get your "constant". IF you input your Ballistics chart wind drift data adjusting for a 1 mph wind. No ego homie, just tossing ya a tidbit. It will also help you find your constant at any distance you want. Its just reversing the math is all. My hornady 4dof says .28moa at 1mph at 500 yards. 7mph is .28x7=1.96. So 7x5=35/1.96=17.85. I round to 18. Even if yours varies slightly based on your location, temp, barrel length, powder-load, etc it won't be but a few hundredths of moa. A constant of 14 is entering into .308 territory. And we know 6.5 creedmoor smokes .308 in wind deflection.
Crybaby Blues thanks, but you lost me. #mathishard
@@PrecisionRifleNetwork The math is easy, explaining math is hard lol. I edited the last comment. Trust me, man, use 18. You'll tighten your wind holds I promise. 6.5 creedmoor deserves it. Distance x Wind then divide by your windcall (moa) and you'll get your constant.
@@cmhwilder Thanks
Is there a chart available out their that shows constants for all available rounds? I cant find anything out there on the net. Maybe I’m not inputting the right info.
Actually there’s a way better method for figuring wind now. This video is a few years old. New way dopes gravity which is a constant no matter what caliber you choose. Bullet constants were bullet specific…no longer the best way. Here’s a link to an article - www.snipershide.com/precision-rifle/the-modern-wind-rose/
Hold up, wait a minute... i feel like im missing some information in order yo try this myself. You get the wind by using the chart and reading vegetation, i get that. Then you multiply by a wind constant that at your distance was 14. So i assume that constant changes depending on range? Do you have a chart for that? Then multiply again by .3 for mils... plus whatever value the wind is blowing from.
Hudson as I said in the description, google search for wind constants. You should easily find a bunch of articles and charts.
The reason I worded it like that is because some people say the constant changes based on some variables and some people say you use one constant for everything. I was trying to acknowledge that.
I personally just use 14 for everything because #1, I don’t need a wind constant at all below 300 yards. And #2, from 400-1000 my constant works fine. It might and possibly should change beyond 1000y but I never shoot that far.
Theres an old wwii rifle training video that describes guessing wind speed and determining wind holds. The formula for the hold was (A*B)/10= number of windage clicks, where A equals the range in hundreds of yards (ie 500 yards=5, 1000 yards= 10, ect) and B is the wind speed in mph. This essentially gives you the wind hold in moa as the windage knob on garands is 1 moa clicks. I believe that the 10 is the constant for m2 ball ammo
That constant does not work for me operating in meter and kilometer per hour. I had to increase all the way up to 19 for a constant.
How do you figure out your wind constant for a 6.5 grendel?
Here you go, maybe this will help.
alphamunitions.com/wind-calculator/
thanks boys
You’re welcome
how did you come up with .3 ? curious, the formula made sense to me up to that point
that's so you can change it into Mils from MOA
Ok so will it always be .3 ?
Wots constant for 308?
The wind chart is valuable, but instead of mathing the rest out, just use a ballistic calculator.
Hello Sir, how to find range constant for non 6.5 reedmoor, for example 308？s'il vous plait.
Your constant for a .308 is 12 or 13. Again, this is just a rough estimate, but it should get you pretty close.
@@PrecisionRifleNetwork thank you sir.
Sir, Thank you very much for your answer, and I have another question : that is if I find some informations of a bullet in their official site , for instance the BC of 6.5 creedmoor of Hornady or BC of 300 WM of RWS, it's possible calculate the wind drift by
this BC value, if not which information is useful for calculate the wind drift?
@@zfzhao2562 yes, it's possible to estimate a wind hold based on a bullet BC. You should go to Sniper's Hide forum and search for "weaponized math". The posts there about this topic will be most helpful for you.
@@PrecisionRifleNetwork I am very grateful for your help, Sir.
Nice - but you’ve left us with questions. Wind was quartering towards you. Quartering away; still by .75 or now by .25?
I explained that and showed it. about the 2:50 mark.
@@PrecisionRifleNetwork what you explained with the addition of arrows was that you multiply by .75 for a wind that appears to quartering towards you. Do I still use .75 if the wind is quartering away from you?
send it
Good info, except that it is next to worthless without explaining where the constant comes from or how to calculate it.
Same as other comment. Where does one find the constants?
Ketema Harris I replied to above comment. Go read that one. 👍🏻
What / How did you determine your "wind constant" to be 14? And 14 what? Whats the metric there? Great vid by the way. Wish I had your range!
My bad. I just read the other comments about wind constant. Sorry.
For those interested in the wind constant read from "An Old Marine Corps Method" on this link: www.millettsights.com/resources/shooting-tips/mathematics-for-precision-shooters/
At 600 Yards, Divide by 14
At 700 and 800 Yards, Divide by 13
At 900 Yards, Divide by 12
At 1000 Yards, Divide by 11
How did you get to your gun constant of 14??
It’s a formula based on distance and wind speed, but it changes based on caliber too.
Here’s a video about it.
th-cam.com/video/p026Y0WUy6Q/w-d-xo.htmlsi=wVFm-4Di0J8QVPfl
This is why the us uses drone strikes ohhhhhh
So 6.5 x 2 + 1 = 14? 6.5 x bullet weight / distance? WTF is 14?
ynotjf The wind constant for most 6.5’s
It’s not perfect, but it’s close. It’s just “try dope” after all.
Looks like you lost your wind before you fired.
Confusing!
John Floyd how can I help John?
Precision Rifle Network
Too many factors for me to process.
I guess I'll buy a Kestrel.
Thanks
@@johnfloyd7132 and lots of batts
All of this is really good information.. But,, (there is always a
but),,,,,,, What I am looking for is the step by step way to calculate
all the variables to dope the scope accurately without a ballistics
calculator.. I want to know how to do it the old fashioned way because
lets face it,,, anyone who has half a brain and has used technology when
the rubber meats the road has always had that technology fail on
them... Can anyone point me to a spot where the actual step by step
mathematics are taught? And I am not talking about the idiotic 1 moa is 1
inch at 100 yards crap.. Im talking about taking all your known data,
doing the math on paper and adjusting your scope appropriately.. I have
watched a million videos and for some odd reason no one ever explains
the math.. Whether they dont know it and use a machine or dont want that
info out there I dont know,, This is the closest I have ever seen anyone come. But I believe that if you want to be the
best shooter out there, you need all the info.. Any help would be
greatly appreciated..
Are you familiar with the Sniper’s Hide forum?
@@PrecisionRifleNetwork No I am not. do I just type that into a search engine? I am also interested in knowing what FM's cover these things.
@@oldmanpatriot1490 definitely get on sniper’s hide and search that forum. It’s probably the most comprehensive source of info on precision shooting anywhere.
Tibersaurous Rex on TH-cam has the hands down best long range videos on the internet. He’s got a LONG ass series. Each video is like a subsequent class that. It starts a little basic with things like cartridge selection but also goes very in depth with ballistics and calcs. Bring some popcorn and pad and paper and enjoy the process.
@@ssgslaughter4639 Thanks, But even T-Rex doesnt go in depth into the calculations that brings it all home without a ballistics calculator. If you watch his videos closely,, you will see a kestrel in his videos... To the untrained eye,, T-Rex comes off as the know all be all.. Although he is very good at long range shooting and knows his crap,,,, he still needs a ballistics calculator like the rest of us..
Since this comment,, I have purchased the Kestrel 5700 sportsman. the kestrel is powered by a AA battery, so I bought the goal zero nomad 7 in case I need to recharge.
And for a back up,, In case all else fails,, Another good man turned me onto a analog calculator called the Accuracy 1st whiz wheel.. Really awesome company.. You call them and give them detailed information about your rifle, cartridge and scope over bore and they custom make a whiz wheel for each weapon system you have.
So if you are looking for light weight state of the art system that affords you to stay out on mission for extended periods of time,, and a analog calculator to back up electronics,,, this is what I have done.. Check of them out...
I know this isnt cheap and isnt for everyone but with all of them combined, I am well equipped for any mission that may come my way given the state of affairs we find ourselves in..
Way too complicated
i agree. It's just another option.