Just find a 3" barrel online for sale or trade. There should be plenty floating around. It is the taper ahead of the chamber that I am worried about.
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Just find a 3" barrel online for sale or trade. There should be plenty floating around. It is the taper ahead of the chamber that I am worried about.
Use a Brownells long forcing cone reamer. Ream till the 3" shell head spacer gauge fits in.