I'm in the middle of prepping about 2000 .223/5.56 cases. All seem to be going in and dropping out of my case gauge well except cases marked " NPA 5.56x45 99". When inserted in a rifle chamber they go in and drop out fine, but I need to pry open the bolt when I slam it shut. These cases do measure large at the case head @ 0.378 as compared to most case heads that measure 0.374. I am using a RCBS SB .223 die. Boot 'em or shoot "em?