A word to the wise- a .44 round ball with 30 grains of FFF black powder, or equivalent of Pyrodex or other synthetic is really the maximum recommended. THe velocity is around 700-800 fps, depending on powder, length of barrell, and whether you are using balls or conical bullets. Follow the book. Only in the Walker models are the loads of 40-50 grains max acceptable, and that is due to the large frame. I tested many loads in a 60 Army, 58 Remington, and the bastard Cabela's brass frame Navy .44 copy. 30 is the max I found to be anywhere reliable. The most accurate and very capable load was around 25 Goex FFF. I have put down at least 11 hogs with a .44 and half as many with the .36. For the .36 15 grains was the norm and to my surprise very effective. It is the equivalent to a regular .38 round nose round. All head shots on deer, hogs were effective and one shot affairs. I always put a wad over the powder to avoid flashover, and if you seat the ball directly over powder, seal the cylinder over the ball with Wonderlube, Crisco or similar natural sealer.
The rule on round ball and black powder is the knock down power not speed.
IMHO, 2 cents and 10 years of burning powder.