I am about to trade an H&R Topper 12 gauge SS, for a 410 SS Hawthorne 110/Savage SB100B + some cash. The Savage/Hawthorne has an internal hammer, and tang safety. I am looking at either relining to 32 H&R or 38 special for a rook rifle. Anybody have any experience on doing this and would be willing to help me in the process? 38 special has the advantage of exceedingly cheaper and common brass, but I do have a large supply of cast 30 caliber bullets from 94 grain to 200 grain. I would just need to get brass and dies (unless my 7.62x38 Nagant dies could be used). I would obviously need to borrow/rent a chamber reamer and find either a barrel to turn down, or a liner for either.
Ideas, suggestions, of generally a bad idea?