I think it's more likely to be the carrier/follower assembly.  I have put a 98 assembly in one of my 92/96s trying to improve feeding of HPBT match bullets and it took a bit of tweaking to get it away from binding on the top of the magazine.  In the end, I went back to the original assembly before Camp Perry.   I might have to mess with the 98 assembly again if I want to get some flat nosed 220gr cast bullets to feed.  :D