Sure I have used plenty of it in the past. I especially liked the pyrodex select. It is very consistant grains and meters well through a measure. Grain for grain load it the same as Goex or any other black powder.
Do not confuse subs though. 777 is way powerful stuff and I tried it and it was too much for me in handguns, but I still shoot it in my 45-70 and 38-55.
These days I have been sticking with APP and I like it the best of all subs. After all it smokes the most and is just fine for CAS, but I had no luck with long range with it myself. In short Pyrodex is fine and a perfect sub for true BP. There are loading charts on Hodgens website for Pyrodex too. :grin:
Load up and smoke it.