Has anybody re-chambered a 17Mach2 Contender Carbine barrel to 17AH or other centerfire round....how did it work?....who did it?....all the pro's and con's. The bullet diameter is the same and I think TC uses the same twist barrel for both. I've got a new 23" 17HM2 barrel that I'm thinking about doing it to. I love my HMR barrels but I just don't see much use for the 17HM2. Thanks, Walt