I use magnum primers with ball powders in just about any size case.I experiment with different primers just to see what gives me my best accuracy.I have found that using a CCI mag primer with H4831 SC in a 270 with 140 gr Bergers gives me super accurate groups,top MV and low SD.But that is in one particular rifle.Trying different things is kind of what loonies do!!!! grin

Last edited by Huntz; 08/26/13.
Its all right to be white!!
Stupidity left unattended will run rampant
Don't argue with stupid people, They will drag you down to their level and then win by experience