Home Forums Hunting & Shooting Cowboy Action Shooting "loading down" the 454

I posted this in The Lever Action General, but thought I might get more responses here:

I just aquired a Rossi 92 and don't want to shoot Colt cartridges for plinking, just Casull because of OAL. I'm wondering if I can safely load Colt level charges, or if the excess space in the Casull case requires more powder to maintain safe low-end pressures. I sure don't need to have a projectile lodged in the barrel. Right now I'm using True Blue and Enforcer powders just above Ramshot's listed minimum charges for the 454. Just wondering if I can safely slow it down a bit with the same powders.

Thanks,

Dan