I have a couple of heavy Ars.
One is with from PSA with a heavy FN 18” barrel chambered in 5.56 with a 1/7 twist, Faxon nitride BCG, Larue 2s trigger and PSA lower
The other is complete upper (with BCG) from Anderson. It has a fluted 24” heavy barrel chambered in 5.56 with a 1/8 twist, Larue 2s trigger and PSA lower as well.
I loaded a bunch of ammo using:
Once fired processed LC brass
CCI 400 primers
Varget
73 ELDM and 69 SMK bullets
Below pic is the average groups I’m getting with these two uppers at 100Y. The average is for four 5 shot groups.
I’ve borescoped both barrels and the FN looks pristine and better than the Anderson barrel.
I’m thinking the accuracy is a little disappointing with the FN barrel.
What are your thoughts and what kind of groups are you typically out of this type of barrel?
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