Re: Fake BP vs Real BP in Performance
Congratulations, you have rediscovered the load for the US Gov't 50 caliber carbine which was introduced in approx 1866. A great many of the early cartridge guns shot great with shallow fast twist barrels and about your load of real black. All of my in-line guns are percussion utilizing No 11, caps. They also all have round ball rifling. The little 32 will put five into a postage stamp at 75 ft. I don't shoot anything but real black.
many don't realize that the subs have their own problems. Pyroduh is more corrosive than black. Trip 7 suffers from the famous crud ring. Some have ignition problems. Black ignites at a lower temp and is therefore easier to ignite. As for the infrequency of wiping the bore. I am convinced that the load tightness, powder charge and barrel length will dictate how clean a load burns. If a load is not tight, or there is substantial powder still burning when the projectile exits the muzzle, fouling increases dramatically. Having powder still burning in the bore, is a factor of whether the powder is consumed before the projectile exits the bore. Most barrels have a sweet spot, a load that burns most efficiently for the projectile and the bore length. If too much powder is still burning when the projectile exits, a good part of it is wasted with no proportional increase in velocity or energy. When the powder burns without pressure, the fouling goes way up.
Your load, which is light to moderate for any gun above a 40 caliber, was consuming the powder before the bullet exited the muzzle. it burned cleaner.
For me target shooting is multiple consistent pleasant loads. Beating my shoulder to a pulp with $5.00 bullets and excessive pellet feeds has lost all semblance of plinking or target shooting