LocoGringo
Member
Here's the situation: I recently built a new AR-15 and the barrel maker guaranteed sub-MOA accuracy with match ammo.
I followed their recommended break-in procedure of shooting 60 rounds no faster than 1/second (I shot MUCH slower than that while zeroing and tuning). All groups were shot from a front rest with a rear bag. At the end, I loaded some HPR 75 grain match and shot for 2 5-shot groups. The groups were both larger than 1MOA. I loaded 5 rounds of Federal Gold Medal Match 69 grain and shot a group. Then I loaded the same magazine with ammo from the same box and shot it from another AR-15 that has the same scope, trigger, pistol grip and buttstock.
The first rifle that guaranteed sub-MOA shot a disappointing group that measured 2.47" while the group from the other rifle measured .78".
My question is this...is it possible/likely that the new rifle might "settle in" and improve with use? Both rifles are for 3-gun competitions.
I followed their recommended break-in procedure of shooting 60 rounds no faster than 1/second (I shot MUCH slower than that while zeroing and tuning). All groups were shot from a front rest with a rear bag. At the end, I loaded some HPR 75 grain match and shot for 2 5-shot groups. The groups were both larger than 1MOA. I loaded 5 rounds of Federal Gold Medal Match 69 grain and shot a group. Then I loaded the same magazine with ammo from the same box and shot it from another AR-15 that has the same scope, trigger, pistol grip and buttstock.
The first rifle that guaranteed sub-MOA shot a disappointing group that measured 2.47" while the group from the other rifle measured .78".
My question is this...is it possible/likely that the new rifle might "settle in" and improve with use? Both rifles are for 3-gun competitions.