Making a barrel liner

[Danth]

I'm considering making a 32-40 barrel liner from a Siamese Mauser barrel. What do you think? Best, Dan

[Texas by God]

A barrel liner for what gun? I think the Siamese barrel might be .323” or above whereas the .32-40 should be .321” or so. The twist Might be faster on the Siamese barrel as well. But slugging the barrel will tell you a lot.