From what I'm reading here, at least 3 of us, and maybe more, that have done something resembling proper testing have observed or shown that Creedmoor cases need a large rifle primer for reliability and consistency in hunting or other cold-weather activities, and further that the only thing SR primers do is let you significantly overload the cartridge for longer before you destroy your brass. I don't understand why this would surprise people, but I'm glad the info is there for folks who want to know.

Last edited by MZ5; 01/17/19.