Whoops, bad rounding. By the rule I gave, a .75 caliber should be about 80 grains but I think 70-75 (if you have a measure that splits 10s) would be heap beau coup for that musket, ESPECIALLY if it's an original. Might find it more accurate too.
120grains (2f I hope?) is waayyy over loaded. Standard load for Civil War rifle muskets was around 60-65 grains. An old rule of thumb was powder charge equal to the caliber rounded to the next highest 10. By that reckoning, your powder charge should be about 70 grains.
D'oh! Sorry about that. You are absolutely right.
Whoops, bad rounding. By the rule I gave, a .75 caliber should be about 80 grains but I think 70-75 (if you have a measure that splits 10s) would be heap beau coup for that musket, ESPECIALLY if it's an original. Might find it more accurate too.
its a smoothbore bro there is no rifling in order to achieve accuracy in a large caliber smoothbore you have to have ATLEAST 100 grains
120grains (2f I hope?) is waayyy over loaded. Standard load for Civil War rifle muskets was around 60-65 grains. An old rule of thumb was powder charge equal to the caliber rounded to the next highest 10. By that reckoning, your powder charge should be about 70 grains.