Hello guys, as the title says, does anyone know where I can get replacement barrels for the muzzleloaders? Both of my grandfathers had these and I recently got them from my parents. Bad thing is that they were both loaded with round balls, and kept in the spare closet for a few years. I can't get the balls out (think they're rusted to the barrels). Or does anyone have a tip to try and get the ball out?