relining a barrel?
 

I've got one of those mis matched broomhandle probably imported as a barrel of parts from China and cobbled together into a pistol. this thing has been bored to 9mm and it does shoot 9mm fine but the barrel seems awfully thin. can the barrel be put back to 7.63 with a liner? jim

It certainly can be done. Just make sure you're OK with the cost/benefit, since this seems to be a mix-master. Those who've had it done can tell us how much it costs and the best place to have it done, I hope. Conversion to 9mm seems to have been common, so concern about the thinner barrel walls that result is probably not greatly warranted.

I've shot maybe 40 rounds thru the pistol,.the 9mm flops around the mag well but functions fine. jim

If it ain't broke don't fix it.
Norm

What Norm said, why pay $$ to have it changed to a caliber that costs more to shoot?
Someone paid already to have it bored to 9mm!