I had a blast messing around with BP in an H&R Topper for a few years.
Made a chamber plug and shot it as a muzzle loader and also loaded BP shot shells for it.
Took a lot of squirrels and a few rabbits and partridge as well.
BP seemed to give up nothing in range or knock down power. Recoil was a nice push.
The modified choke with a shotcup threw real nice patterns both SS and ML.
Equal volumes of shot and powder was the load formula. 1 1/4 oz of shot IIRC.
