I have had a different problem with this ammo. The ammo is coming apart before it hits the target. It appears that part of the jacket comes off before the round leaves the barrel. I am practicing at close range and the target will have small fragment holes and spots where other fragments hit and left a gray mark. Sometimes a metal sliver or two will stick to the target. Also, a few rounds appear to have hit sideways.

I am convinced it is the ammunition because both of my M&P's as well as my Ruger P89 have had incidents where this happened. It only happens with Federal Champion. I have a number of boxes of each caliber. While it was bought as range ammo only, I wonder if it could be harming my barrels. Any ideas?