Federal Gold Match 215 mag and CCI250 mag
Aceman, the Federal and CCI primers are actually a little larger in diameter than the non nickel plated primers from Winchester and Remington. If you are using brass that has been loaded several times with warm loads, the CCI and Federal primers will give you a tighter seat. For unfired or once fired brass, I prefer the Remington 9 1/2M or the Winchester LRM primers for ease of seating. Once they seem to seat too loosely, I will switch to the Federal primers.
