• Winner! Quick Shot Challenge: Caption This Sniper Fail Meme

    View thread

Rifle Scopes 20 moa picatinny rail

Paul1262

Gunny Sergeant
Full Member
Minuteman
Jan 13, 2019
550
118
I generally zero my rifles at 100 yards however, just curious if a different yardage should be considered when using a 20 moa picatinny rail? I somewhat remember reading that it was recommended to zero at 200 yards when using a 20 moa rail.
 
All depends on amount of elevation travel. Generally a 20 MOA rail should allow for more scope elevation travel while still maintaining a 100yd zero.
My scope has potentially (assuming the elevation was at it's center), 120 moa of elevation adjustment. With a 20 moa rail that would give me approximately 80 moa of upward elevation adjustment.
 
The only time you would have issues with zeroing is if you added more cant to your rail than the scope is capable of accommodating. And even then the difference from 100 to 200 is pretty minimal.

If you had added a 30 moa rail for a scope that only has 50 moa of travel then you would be -5 moa in the hole and that would require you to zero further out or to decrease the cant in the rail.

You have a good scope with adequate elevation adjustment, continue on with no worries :)
 
The only time you would have issues with zeroing is if you added more cant to your rail than the scope is capable of accommodating. And even then the difference from 100 to 200 is pretty minimal.

If you had added a 30 moa rail for a scope that only has 50 moa of travel then you would be -5 moa in the hole and that would require you to zero further out or to decrease the cant in the rail.

You have a good scope with adequate elevation adjustment, continue on with no worries :)
Thanks.