I see this is real old now but,it was a good topic,I don't know if my mag well is metal I have to look ,my mag is metal but I have feeding issues and it seems I might have an issue cocking sometimes,this is new ,I might have to back off trigger adj.a little and my groups have gone to [bleep] ,I wonder if copper fouling is an issue or just different ammo I was getting tiny groups when new last year I noticed this opening up this year best at 100 is1 1/4"-1 1/2" best when new was 5/16" at 75 yds,I wish I recorded the ammo. Might have been Hornady though
