I have two 10" .22lr barrels, a 10" 22 mag barrel and used to own a 14" .22lr barrel. They are all TC barrels and all of them are very accurate. I prefer the heavier bullet from a 22 mag so I never picked up a 17HMR, but I have heard its a good round. Remingtons 33 gr Accutip-V is very accurate and flat shooting in my .22 mag barrel. I've had more fun playing with a .22lr barrel at the range, plinking and small game hunting than any other barrel I've owned.