Don't have a .36 pistol, but do know that you'll have to do some experimenting with loads to find the best combination for YOUR pistol. To give you some idea though, in my Hege-Siber pistol, which is a .33 caliber, I use 20gns of Goex 3Fg under a 00-SG ball & a .018" teflon patch. If that Carleton underhammer were mine I'd probably start off around 18gns & work up. Should think you'll find the sweet spot somewhere between there & 25gns. Ball/patch sizes will be determined by your particular pistol, but would assume you'll be using a .350" ball.