Home Forums Hunting & Shooting Ask The Gunwriters magnum vs standard primers for 300 win mag

Here's an article written by Allan Jones of CCI. I've posted this elsewhere. He states that in 1989 CCI re-formulated the mixture for the 250 primer to burn hotter for use with ball powders. Previously the 250 merely used more of the same mixture used in that company's 200 primer.

http://www.shootingtimes.com/2011/01/04/ammunition_st_mamotaip_200909/