Using Magtech brass 24 gauge. Base is .658, case mouth OD is .645. Wall thickness is .015. Chamber has no throat: Just goes right to the rifling. Cases need to be shortened about .25, as ball will be seated in case about halfway. Bore has 7 and 7, so is hard to gauge. I estimate about .564-68 in grooves. I have some .562 roundballs to start off with. Just hope to get consistent <6" at 50 yards with the fixed sights for close range woods gun. Seems I really just need maybe 5 or so 1000ths polished out to work. I could wrap 28 ga brass with copper tape, but a bit leery of this, although I have done it for oddball rifle chambers.

Last edited by Rudybollo; 02/22/18 05:38 PM.