T/C made 10mm barrel's for the Contender rifle version in 16" I think, or at least that's what a local friend has told me that is very big in the T/C Contender. I think it was probably a offering from their Custom Shop at that time.
I have seen 6.5", 10", 12" and 14" barrels on the internet and a 14" barrel can be used with the rifle stocks. I have a 10" and I think a member here has a 12" or 14" barrel.
Rimfire for plinking, 357 Magum for paper, 10mm for when 45ACP isn't enough and 44 Magnum for everything else.