Jeff Porter
Gold $$ Contributor
Negligible difference in SR Magnums versus standard match primer as far as brissilance of the primers. Mostly the cup thickness to hold up to higher pressures in my experience. Also R 71/2, CCI 450 and Fed 205 MAR are interchangeable with my loads.
Don’t stick a CCI 400 or Tula standard primer in there unless you really like primer flow and piercing.
Don’t stick a CCI 400 or Tula standard primer in there unless you really like primer flow and piercing.
