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Primer questions.
CCI 400 -thin cup, not recommended for AR15 use by CCI/Speer. I'm loading 223 Remington in a sem-auto. Does this mean I should not use these small rifle primers?
What is the danger?
Has anyone used these? Primers recommended for use in .223 Rem/5.56 semiautomatic rifle loads:
CCI #41
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