Black Powder is the best for shotguns. I use it in my 10g (hence the name BPturkeys). It's just "snappier" in a shotgun. I also use it in my bowling ball cannon...Pyrodex will NOT launch a bowling ball...haven't tried 777 or any of the other stuff, but my guess is that it won't launch a bowling ball either.I use it n my 12 gauge shotgun.
Well that might be true. I never in my wildest dream ever considered try using a pound of propellent in my cannon. I never had any problem shooting a 16lb 'er close to 500 yards with Goex. My typical charges was around 1000-1200grs. I think there are 7000grs in a pound. A charge of 1200grs of Pyro would shoot the ball about 30 yards, but must admit, the flame and smoke that the Pyro put out was spectacular.I dunno about that, I used to work in west Orem right on the edge of the lake / cattails. The company next to us would go out every few weeks and blast bowling balls into the marsh. They'd easily go 300 yards. They were using a full can of pyro per launch (cannon was made out of a acetylene bottle). It was pretty cool to see.