They are a good hot primer to ignite ball powders used in govt contract 7.62...the big difference is sturdy construction of cup to eliminate slamfires...use 'em up. The chronograph shows no surprises compared to Winchester Large Rifle.

Last edited by flintlocke; 01/12/21.
Well this is a fine pickle we're in, should'a listened to Joe McCarthy and George Orwell I guess.