Roundball im not sure but isnt a maxiballs last band a little bigger than the ones toward the center and rear of the bullet.I aint shot any for sometime but i remember the ones i loaded took a good wap to get the end of the bullet in the bore.If that is the case the patch material would be a lot tighter there than at the rear.
I have shot pistol bullets in 45 out of a 50 with patch material and did get them to shoot.Took some pillow ticklen and another patch to keep the patch from having a hole in the center.These were copper jakets so they didnt set up like lead would.shot a goup of 4 inches at 30 yards :haha:
Presision Bullet makes 40 cal bullets for modern muzle loaders that are pure lead.Supose to shoot em with the plastic but they are a 40 cal bullet.
I have a slug of em around here some wares.Maybe you could run a file around them to rough em up on the out side some how for a little lube.some are solid lead and some are plastic tiped things.Drop me a pm with your address if your intrested.I aint gonna use em in any thing but in a 40 cal they just might work.Maybe you could trade me some of them old flints you have in a the jar.Probably be just about right for my small lock. :v