My 10" TC 22lr match has been the most accurate of all the 22lr handguns I have ever owned. At one time it had fired the most accurate 22lr target for me at 50 yards rifles included. My later rifles - VQ and Shilen barrel 10/22s , Sako P94S and CZ 452s have since then taken top honors.I didn't get a TC 22LR until a few months ago & haven't really put it to a head to head test with others yet myself.
I've never found the Ruger Mark series to be that accurate, just average, but a Mark 2 10" with a scope could change that, haha!
The MKII series I have owned all have shot well including the 10" when I briefly had a more powerful pistol scope on it , maybe I can locate the target I shot , has been many years ago!