From a private group on Facebook:
Had a helluva time zeroing it at 25m, and at 100m it was all over the place. And some of the holes on the paper looked wrong…some of them were kind of…oblong. He’d bought some really cheap ammo online, so we were suspecting something was amiss with the ammo. Perhaps reloads sold as factory made. Then we got back to my place, he pulled the upper off, looked down the barrel, said it looked kind of funny. So I looked down the barrel. Then I quickly took my AR apart so I could look down it’s barrel. Then down his barrel again. Then mine, then his.
HIS HAS NO RIFLING.
It’s a fucking AR15 *smoothbore*.
The targets are from 25 meters. The one on the left is the smooth bore. The one on the right is a normal rifle.
I’m sure the “rifle” owner is far less amused than I am.