Just a feeler about keyholing. I was shooting my brand new Mossberg MVP Predator(5.56 w/threaded 18.5" medium bull barrel) yesterday. After I zeroed it in at 75 yrds( I plan on stretching it out, just didn't have time), I noticed the shots were leaving oblong holes in the paper(keyholing). I was shooting 55gr FMJ ammo. I see a number of XM193l on the box.
Any ideas?
Any ideas?