I've been using the magazines from springfield in my M1A.Anyone with experience with the Promag 20rd magazines in a Springfield M1A? Half the price....half as good? Or how about the Taiwan T57? Man, the mags are hard to find, and of course it won't get any better...soon may be impossible.
I've used the 10 and 20 round Promags in my mini-14 with good results.