Its been a while since Ive seen any good 22 upper reviews so here goes nothing.
Specs: Sun Devil billet LH side charging upper, stag conversion, green mountain 1:16 blank @ 26" finished length, all work done by Keystone Accuracy.
10 rd 50yd groups with cheap cci standard and wolf target ammo. Both ~.6". I'm sure it can do better with pricey ammo, but for now it's plenty good.
Cci
Wolf
Overall very happy with the quality and accuracy, now if ammo will ever come back in stock...
Specs: Sun Devil billet LH side charging upper, stag conversion, green mountain 1:16 blank @ 26" finished length, all work done by Keystone Accuracy.

10 rd 50yd groups with cheap cci standard and wolf target ammo. Both ~.6". I'm sure it can do better with pricey ammo, but for now it's plenty good.
Cci

Wolf

Overall very happy with the quality and accuracy, now if ammo will ever come back in stock...