Those are pretty cool. My dad has 5 of them. From the long infantry version, to the Cossack carbine, to a sniper version. The sniper model is cool, original scope.

He also bought an RPK a long time ago. Thats a fun gun also. Load the drum up all the way and try to fire it standing up, ehhhhh, not too easy with the long barrel and bipods attached to the end.

As far as black power goes, I have a .58 Zouave. Haven't shot it in a while. But it's fun when you do.

On the 4th of July me and my brother (who has one also) would put a load of power down the barrel with no ball, put a cap on, point it at the sky and fire. Nice big flash-boom.