Does anyone have reliable information about what sort of pressure black powder develops? I'm interested in both muzzle loader, and BPCR. The muzzle loader is a Pedersoli Gibbs, shooting 100 grains of 1 1/2 Swiss, behind a 520 grain cast bullet. The BPCR is a Shiloh Sharpes 1874, in 45/90. 85 grains 1 1/2 Swiss, and 535 grain cast bullet.
Any guesses what effect a 5 grain smokess duplex load would have?
Any guesses what effect a 5 grain smokess duplex load would have?