[QUOTE]Art & others - would you think it's fair to say that the effective range of the .17 mach 2 is nearly identical to the .22 magnum?/QUOTE]
Pretty sure the mach 2 is closer to the .22 lr and the .17 HMR is closer to the .22 magnum.
I have a Savage and 150 yards is pushing it with any kind of wind. Mine shoots much tighter at 100 yards. (HMR)