That was my speculation, but I'm not sure if we've seen any conclusive evidence to suggest that, besides the GOV marking on the 54227. Didn't we find that the headstamps on the 54227 floating around are 2014 and the 54226 are 2013?
Did the ATK engineer confirm this or offer any other details on the G2 you can share?
That is correct--same ammo.
Facts matter...Feelings Can Lie
I have to wonder if the variable is in the polymer filler in the hollow point cavity, and if there is any aging effect that occurs when the ammo gets older that hasn't been previously discovered i testing.
Just thinking about possible variables that would effect the testing.
I posted this group in a thread on the Marksmanship forum, but it may be relevant here as well. This is a 5 shot group I fired at 25 yards tonight with this 147gr GD2 ammo standing/unsupported with my stock gen4 Glock 19. POI/POA was right on (held center of upper A zone). POI did not differ at all from 147gr Winchester Ranger Bonded or 147gr Gold Dot.