I shoot a 17 hmr for grouse, and have been thinking about going to a 17 mach 2 instead. Between 10 and 60 yards, my 17 hmr has 3" of variance. When shooting them in the head, this can be tricky. I don't want to go back to the 22 rimfire, because I like the way the v-max bullet preforms. You touch any part of the head or neck, and it's dead. I was considering a 22 mag, but would rather try the Mach 2. Any advice would be appreciated. Thanks.