gun)I seem to be haveing some problems with only a few rounds out of say 30 rounds that I load. When I fire the rounds that I load two to four dont fire I pull them apart and it seems that the primer has gone off. but no powder burn at all. I did find that the powder that came out was a little discolored looked greenish. not all all of it just some. Useing IMR 4350, CCI primers, and berger 168g bullets. The rounds only sat around for a couple of weeks before being fire. Thinking air may be getting in some who. Any help would great thanks.