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MAX OAL in PMAG vs. Steel Mag?

909er

Private
Full Member
Minuteman
Feb 6, 2012
50
1
50
So. Cal. RanchoCucamonga
I dont have access to a steel magazine for a AR10, but if someone happens to have both a PMAG and a steel magazine; is there a differance in the ability to have a slightly longer overall length round in a steel magazine. The PMAG looks like the 2.810 MAX book recommendation is about all that will fit. Just curious. I know it wouldnt be by much if at all, but every little bit might help.