They may be appropriate with several rifle calibers, letting you to reload for different rifles and cartridges. Ah hah! That clarifies why the Speer handbook, within the entrance segment covering reloading background and topics, only talks about CCI and Federal primers as though no other brand names exist! Reference to https://federal-primers-20984858.free-blogz.com/79197951/a-secret-weapon-for-federal-215-gold-medal-match-primers