:hmm:Here are a couple of things to consider. 1)My experience with a smoothie with round ball is it is not as accurate with light/medium powder charges (60 grs or less FFg)than with heavier charges(90 gr + FFg).Especially over 25 yds. Rifle is a different critter, & Shot loads are different, can be shot well with light loads. 2) a 24" barrel will not completely burn all the powder in the heavy load, shot or ball. :shocking: Perhaps not even in a 30" barrel. 36" ? Don't know. maybe FFFg ????. I shoot a .62 French fusil and an English fowler, 42" in barrel, but am not any expert. Next one will have a 46" or 48" barrel.
They shot Fg in smoothbores, they musta had a good reason. :m2c: