The BP subs work and are easier to clean. Like black powder they are corrosive and must be cleaned. They are not the same as low pressure smokeless.

My favorite is American Pioneer Powder. I have not tried Triple Seven because it is more potent and I can not find many loads for it. Other use it.

That said to me the subs are not exactly the same. In my opinion the feel and boom is a bit diffrent. but I do have my biases.

You will have fun no matter which you use.

RPr