4575wcf Posted April 6 Share Posted April 6 Hello I was looking on some input on whether or not a rifled barrel liner could be flared at the chamber end? I need the twist rate for the 32/40 black powder barrel 1-14" but I want to chamber for a larger diameter cartridge. If the chamber area of the liner could be expanded to a diameter somewhat smaller than the chamber, then reamed as normal you would not wind up with the thin barrel wall around the chamber where you need metal most. These liners are designed for straight wall cartridges, and they have limitations for anything ese. Near as I can tell the liners are constructed from 4130 tubing, probably barrel quality stuff. A blacksmith would make up a proper shaped punch, heat the tube to red heat and knock it in, but would the tubing tolerate this without splitting or structural weakening? Quote Link to comment Share on other sites More sharing options...
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