I have a couple of Mauser Broomhandles, a 1930 Commercial in .30cal and a Bolo in .30cal. The bores are long gone in both of them and while I had talked to Redmans about a reline, that guy is much to cranky to deal with so I have endeavored to do it myself. I have a compromised 30-30 barrel that I can make a liner out of for the 7.63 reline but can't help but wonder what one would be like in .22TCM. I am not sure about pressure differences between the two cartridges and wonder if it would be a sane reline. Granted I could load my own to make it safe I'm sure but does anybody have any thoughts on how the Mauser would deal with the new factory cartridges? I would probably choose the 1930 Commercial since it is most likely newer than the Bolo.