I recently purchased a 54 cal renegade, I haven't been to the range yet because of other committments. I have several pounds of Goex FFF for my 50 cal on hand. Will FFF be suitable in my 54 cal ? I was hoping to use the same powder.
Most of my rifles are .54 and all but one prefers FFFG. They shoot tighter groups with it, as the pressures are more consistent. It's also easier to clean up and fouls less than FFG. No worries about using it in yours.
No problems with FFF, just remember you may want to drop your powder charge by 3 to five grains as the FFF burns slightly faster and therfore slightly higher psi.