No you would have to get 10 300-221 barrels, shoot them all with 5 different bullets, 50 shots each, then convert them all, then repeat. A huge and expensive process.
I do have accuracy data for 300 AAC BLACKOUT 16" 1:8 twist with 110 grain Berger and Sierra bullets loaded to 2.1 OAL or less - 0.85 inches at 100 yards for 50 rounds (an average of ten 5-round groups).
__________________
R&D for AAC
|