Quote Originally Posted by tacfoley View Post
I've never seen Swiss #3 for sale here in UK - nor, I note, is it available here, according to the Muzzle Loading Association of GB. However, if you have found some, it's about the same as 2Fg, albeit, as with all Swiss powders, a mite more active. You might like to reduce whatever charge that you are using now by 10% and see how you get on.

For future reference -

Swiss #1 = 4Fg/FFFFg - priming pans and VERY small flintlocks/percussion arms.

Swiss #2 - 3Fg/FFFg - single shot and revolvers from .30cal up to .45cal and same with rifles.

Swiss #3 - 2Fg/FFg - large rifles and muskets up to .75cal.

With ALL SWiss powders- start light and work your way up - do NOT load one-for-one measures!

tac
Take a trip to Peter Starley you will see swiss powder number 1 to 5 and 5 b if you have a canon. I use 55 grain of swiss 3 in my 577, naval and musketoon. and go up to 65 to 70 in my 3 band 451