I have had success with 20 and 30 rnd p mags, and 30 rnd GI mags. The older 20 rnd GI mags will not feed reliably for me. I also bought a 20 rnd Tango down mag that I cannot get to feed reliably with .300 whatever or .223
My Loadings and lengths
125 Sierra SPFB 2.010
130 Hornady SPFB 2.010
200 cast 1.990
155 Cast 1.971
150 FMJ 2.065
178 Hornandy A-MAX 2.195
Last edited by gds; 03-10-2011 at 08:11 AM.
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