Cruzin21
Active Member
What do you guys zero your AR15s to?
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AR15 zero
- Thread starter Cruzin21
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My AR15 is 5.56 and zeroed at 100 yards. It's main use is prairie dogs out to 300 yards with a 2-7X scope.
DavidA
Well-Known Member
I use a 50 yd zero on all my AR's 15's and 10' I just believe it the most practical zero. An AR15 with a 2.8" over bore scope zeroed at 50 yds using a 70 gr RDF gives approximately 1.5" inches high at 100 yds.
DavidA
Well-Known Member
It then zeros again at 215 yds and 2" low at 245 yds. So you are within 2" point of impact versus scope 10 yds through 245 yds
sable tireur
Well-Known Member
- Joined
- Oct 8, 2010
- Messages
- 3,964
It's going to depend on what you're using the rifle for and then the twist rate followed by the bullet choice designed for the twist.
Sergeant Stadanko
Well-Known Member
^^^^^^^This!
The OP really doesn't care. He's trying to buy a Sig slide and won't listen to anyone on how to become a member and buy it. So, he thinks he can generate enough posts to get PM privileges. He's flooding the forum with nonsense posts.
I agree with you 100%!!! See my reply on his thread "How does one buy on here?" Joined yesterday???? I don't know but this just doesn't sit right with me. Thanks for pointing this out to all the members here. The games people play never surprises me.
Last edited:
birddog 68
Well-Known Member
May make the post amount but it's still going to be 25 or 30 days.
It would be a shame if it got sold before then.
Why do some think this is Facebook marketplace?
crkckr
Well-Known Member
Zeroing your AR (or any other semi auto fighting rifle) is easy but only if you use the same ammo all the time! If you are independently wealthy (or some government is buying all your ammo) then you can do this but if you're like most of us, you will have to pick your most commonly used ammo, zero it, then figure out where the rest of your ammo hits using that zero. It can get complicated very quickly!
If you use one of the "standard" zero methods, such as the "36 yard zero," you better have standard gear or it can be way off! 20" barrel, military issue ammo, etc, depending on how the zero was originally calculated. Toss in any other length barrel and your zero goes out the window! Unless your zero was calculated with your options, any zero is just a guess. The odds of any two rifles having the exact same velocities, even with the same barrel length, are pretty slim and the numbers can vary a great deal. Which, of course, invalidates any zero not calculated with your specific numbers.
To zero most ammo you will need to know the average velocity. Then you can utilize one of the many "Point Blank Zero" calculators available on the web, which if you enter good data will give you good results. Be honest with your numbers and the results will be valid. Cheat, even a little, and it all goes down the drain!
Otherwise, you'll have to shoot your ammo of choice at various ranges to find out where it hits and figure a zero for that info. Sounds easy but again, it can be complicated in practice. The easiest method is to get your average velocity the use a calculator.
The closer you want your zero to be to reality, the closer to reality your numbers need to be. If you're shooting a 4 MOA group at 100 yards and you calculate a zero using 2 MOA accuracy, your zero is going to be off. Keep it real and get valid results! Otherwise, it's just a guess and may or may not be close to reality!
Cheers,
crkckr
If you use one of the "standard" zero methods, such as the "36 yard zero," you better have standard gear or it can be way off! 20" barrel, military issue ammo, etc, depending on how the zero was originally calculated. Toss in any other length barrel and your zero goes out the window! Unless your zero was calculated with your options, any zero is just a guess. The odds of any two rifles having the exact same velocities, even with the same barrel length, are pretty slim and the numbers can vary a great deal. Which, of course, invalidates any zero not calculated with your specific numbers.
To zero most ammo you will need to know the average velocity. Then you can utilize one of the many "Point Blank Zero" calculators available on the web, which if you enter good data will give you good results. Be honest with your numbers and the results will be valid. Cheat, even a little, and it all goes down the drain!
Otherwise, you'll have to shoot your ammo of choice at various ranges to find out where it hits and figure a zero for that info. Sounds easy but again, it can be complicated in practice. The easiest method is to get your average velocity the use a calculator.
The closer you want your zero to be to reality, the closer to reality your numbers need to be. If you're shooting a 4 MOA group at 100 yards and you calculate a zero using 2 MOA accuracy, your zero is going to be off. Keep it real and get valid results! Otherwise, it's just a guess and may or may not be close to reality!
Cheers,
crkckr
