As far as the 22 TCM feeding from a Savage action? Don't waste your time trying to get it to work. Case is WAY too short. Go single feed with the ejector rod and spring removed. Case will stay on the bolt head till you pick it off. Extractor will hold the case in place. Just like dealing with the .221 Fireball case. Same same!! Single feeding solves the problem.
A few guys are working/thinking about necking down the 22 TCM case to 20 or 17. As far as a reamer? Build a dummy round, send it off to the reamer maker and have your own cut to your specs.
A reamer for the 17 or 20 TCM is what we'll be working for.