[Nathan Zachary]

Well, 70 grains of fff or ppp (both fine grinds meant for pistols) is kinda on the light side. Myself I find 95 grains works just fine for what I shoot (Hornady 280 grain 45cal boatails/w sabbots in my 50 cal carbine; although I've used up to 120 grains without serious blow back on the hammer.

I did have a nipple blow out on me one time, bu the cause of that was from not taking out the nipple and cleaning the threads properly and greasing them up to prevent corrosion. Lesson learned.

Modern inline muzzle loaders are safer and could handle even higher loads because that design weakness inherent in replica's doesn't exist.

[Lee N. Field]

I did have a nipple blow out on me one time,

For some reason when black powder guys talk, I get amused. :-).

[Inyo-Mono]

Well, 70 grains of fff or ppp (both fine grinds meant for pistols) is kinda on the light side. Myself I find 95 grains works just fine for what I shoot (Hornady 280 grain 45cal boatails/w sabbots in my 50 cal carbine; although I've used up to 120 grains without serious blow back on the hammer.

Modern inline muzzle loaders are safer and could handle even higher loads because that design weakness inherent in replica's doesn't exist.

Well mine is a custom built copy of an 1790s flintlock Rupp style rifle and I use FFG, not FFFG in it. I save the FFFG for my revolvers.