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My experience with smoothbores is that .020 clearance is needed at the least to load with a patch. I have a .620 bore and have never found a patch thin enough to load a .610 ball. I have to use a .600 ball with a thin patch. It seems to be lack of grooves for the patching to squeeze into when loading.I'd recommend a .520 ball.Have you tried Jeff Tanner via e-mail at jeff@ballmoulds.co.uk
but I don't use patches in my smoothbores, so roundballs that are .010's "under bore size" work fine for me.
Quote from: "rollingb" but I don't use patches in my smoothbores, so roundballs that are .010's "under bore size" work fine for me.Patchez? We don't need no steenking patchez!
no patches, eh? what holds the ball down onto the magic black dust - a wad?
how 'bout those totw primitive scissors mold?
rfd...You might want to experiment shooting Rb of different sizes before ya settle on one mold to order. Just a thought...