RE: 17HMR and turkeys...
like jjt said if i was to use a rife for something like a turkey i would shoot 'em in the head. Now where i live it is illegal to shoot a turkey with a rifle, so use a bow do to the challenge. but if i were to use a rifle i would go for the head shot just do to what i have done with squirrels, and coyots. for bullets i would use a hollow point for the head, but if your t isn't as good, or the confidence isn't that, i would go with the full metal jacket. (I like to use the CCI TNT rounds)