I purchased a Navy Arms Buffalo Hunter in .58 caliber. Shoots well with Patched round ball. Haven't tried a minie ball. Was wondering if anyone makes a drop-in 12ga. shotgun barrel for this gun? Another option would be to have the existing barrel re-bored to 12ga. Does anyone know of a gunsmith that can do this work? Kind of hate to have a good rifle barrel bored-out, but I already have a .58 caliber flinter that I use for deer hunting. Was wanting something to use for turkey on my property down here in the Ozarks. Saw a flock in the pasture last week and it has given me the bug!