Good post. I've never been able to get more than about 17grs powder under a conical in the 36 navy (cast LEE 130gr conical). I don't see how the Hazard company's 36 cal load could be chambered. One could probably get 21 grains VOLUME equivalent of Pyrodex P into the gun as that powder will compress quite a bit and needs a fair amount of compression to fire consistently.
With over 15 perCUSSIN' revolvers, I've been called the Imelda Marcos of cap & ball.
SASS#3302 (Life), SASS Regulator, NRA (Life), DGB#129
Wolverton Mtn. Peacekeepers (WA), former Orygun Cowboy (Ranger, Posse from Hell)