I got my RIA TCM TAC Ultra FS Combo a little over a week ago, and I've put 138 .22TCM rounds through it so far. This is a bit of status report.
Let me start out by saying this gun is just amazing. Very accurate, has a great feel. I had a couple of the ROs at the range run a few rounds through it, they were suitably impressed, both with the gun itself as well as the .22TCM cartridge.
There were a few minor (and I do mean minor) issues. None of it diminishes my opinion at all. Firstly, it's still in the break in period, so out of a 138 rounds there were 2 F2F, and 2 Soft-Strike/Hard-Primer. Those 4 incidents were out of the first 50rnd box. Then in the third box, I had 3 extraction failures. The first 2 of those cleared by dropping the mag and racking the slide, then the case ejected by pulling the slide back again. It did take some force to pull the slide back that last time. The third and most serious occurrence (pictured), I had to take it down and use a cleaning rod to push the casing out.
Now again, none of this was enough to dampen the my opinion of this gun. I'm thinking that those stuck casings might be due to poor cleaning on my part. At the time I cleaned it for the first time, it didn't dawn on me that the breach is significantly larger than the bore. I might have left some gunk in the neck/shoulder area of the breach, since I used my .22 cleaning gear to clean it. I haven't had a chance to get back to the range...
The other even more minor issue (also pictured), is some brass scuffs at the back of the ejection port. Anyone have any experience with that sort of thing?
tl;dr: Very happy with the gun and the ammo. Super accurate. Couple very minor issues.