What Powder

[alfajim]

Magnum primers pretty much overkill for any blackpowder. What they were doing with that deal was trying to replicate the amount of flash the Berdan primers gave, only problem with that deal ,is the primers pre smokeless powder were much weaker than the primers we have today.

OK I understand what your saying about the primers then vs now but it seems he was getting good results that way. In his book his reasoning was it was taking that much fire to get the highly compressed charge to light off.
Even using the std. rifle primers why not drill out the hole? Or is it that he was balancing out the primer ignition to the interferance and crimp on the bullit? Is that still a good idea to use for my purpose tight fit and light crimp?

Jim