would M1 carbine round do same for you...might be more main stream so easier to source.
if straight walled design....it can be done with boring bar...well it can with .45/70 anyway,so if you clever machinist ...
would M1 carbine round do same for you...might be more main stream so easier to source.
if straight walled design....it can be done with boring bar...well it can with .45/70 anyway,so if you clever machinist ...
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