The time is what I am talking about. I can get twice as many shots in during a session (or more) as compared to really cleaning the barrel between each shot.

And with 777, I don't even shoot a bullet to foul the barrel. I simply pour in about 15-20 gr of powder down the barrel, load a primer, aim it straight up and pop a cap. Then I swab with one spit patch, one clean patch, and I am ready to load up with a fouled barrel.

Haven't quite figured it out without actually firing a bullet with blackhorn since it is a progressively buring powder and needs to pressure of a bullet to go off. However, since it is relatively noncorrosive, I feel all right firing and loading up the day before the hunt, and not unloading until I shoot or the hunt is over.