I think I'll look for a rifle barrel for my G2. I've taken a few ground squirrels out of a custom Ruger 10/22[made into a 10/17] in Montana. Definately more POP than a 22LR! I've shot thousands with 17HMR, 17Ackley Hornet, and 17 Mach IV, but the little Mach II is a fun round on it's own.
Any reports here on the 17M2 in your Contender pistol/rifle??