I want to ream a heavy .410 BBL out to .429 (maybe .428?). The barrel itself is easy enough to remove from the gun so that is all I would have to do.
Stainless steel, nothing fancy, just a clean .429 Cylinder Bore.
(Basicly giving .444 short range thump capability to a .410 Marlin Levergun Clone (which is really only a Marlin .444 reamed Smooth to .410))
Thoughts?