Re: Smokeless vs black powder ammo
At the turn of the last century guns made for smokeless powder used different alloys of steel than the previous black powder guns. Usually guns from that era have some collector value and shooting them with smokeless powder and risking damage to the gun and you is probably not a smart idea.
Modern guns are tolerant to higher pressures because modern alloys, developed mid century (1900's), are much stronger than anything from the 1800's. Steel alloy development only started in the late 1800's and progressed slowly until the steels of today. Black Powder guns have serious strength issues when used with the fast pressure rise smokeless powders of today.
If you reload there are options, like Pyrodex or the other easier to use black powder clones. There are even some that are non-corrosive (but Pyrodex is not one of them). The best performance comes from using quality black powder. Mike Venturino has written several books on shooting guns of the BP era. You might want to try to find one and study it.