05-24-2018, 01:05 AM
I don't know what your problem may be with slam fire "double fire" but I have run CCI 400, 450, BR-4, Rem 7 1/2, Winchester silver color, have heard that the new brass color primers have had slam fire issues, Wolf SRM in 4 different ARs that have 3.5 lb POF triggers and another one that has a CMC 2.5 lb trigger with no problems. Is your trigger the problem or is it the free float firing pin. If it is the trigger releasing you need to fix that. A long long time ago when I first started loading for my M1 Garand I learned not to use Federal 210M primers because I got slam fire. I know what it feels like to shoot a BAR with a 2 and 3 round burst. Never had a problem with any other make primers in it either.

