Guys,
On a historical note: the service charge for the British military service pistol was 3 drams, 82 grains. This was with coarse musket powder and the charge put into the bore was reduced by the priming, say about down to about 70 grains. This was in a pistol bore size of about 0.65. Also the bullet was significantly under bore size, windage, but was often very tightly loaded with some patch/wad/paper to keep the bullet in place as the pistols were carried muzzle down in the horse holsters or with the naval belt hooks.
I have shot this load many times in 20 g pistols with 9 #4 buckshot. The pistol is a bit frisky with a full service charge, 30 grains or so is OK for paper punching.
Have fun.
Jim