You need to contact the maker or get a book on Blackpowder shooting that has loads in it. Different types of weapons and projectiles and powders will determine what is a safe load.
Follow the recommendations in the owner's manual.
40 grains of fffG
1gran per caliber
if u are asking if u can shoot it yes u can
Kits were made by Connecticut Valley Arms Otherwise known as CVA
Assuming you have a single shot ball and cap black powder pistol, anywhere from $50 to $100. These are modern manufacture reproductions, and relatively cheap.
100-500 or so
During the performance of "Our American Cousin" at Ford's Theatre Booth snuck up into Lincoln's box and shot him with a single shot to the head from a .44 caliber Philadelphia Derringer. It was up close and personal.Lincoln was at a theater
Pyrodex , clean-shot , Or tripple 7
i have a 12 gauge Black Bridge single shoot shot gun the serial number is A649620 CAN YOU TELL ME HOW MUCH I CAN GET FOR THIS
Yes. But no 2 player
Unless you tell us what type of handgun, the question can't be answered. Single Shot? Revovler? Semi-automatic? Black powder? Center fire? Rim Fire?