dont much matter...their head is about as big as their vitals...with a broadside shot, you honestly got 4-5 inches of vertical body....the rest of em is just fur. i couldnt believe it till i skinned my first one monday...tiny little critters...

hitting the bone of the head is sure to make more of a mess unless your shooting a 22lr or 22mag...probably better to stick with vitals with anything else...