I really love my .17 , its an awesome gun. I've taken various critters at close range to about a 125 yd shot on a pigeon. Now, the pigeon exploded into 20 pieces. I shot a possum at 15 paces, and carried around for 45 minutes , when it proceeded to get up and walk away. i think this is because the xtp didnt hit anything hard and went right through. Dad shot a possum at 80 yards running and it never twitched. However, he also shot a grey fox at 30 yards in the shoulder, and when he walked up to it, it jumped up and took off. All these shots were with the 20 gr. Xtps. because the bullet is so light and small, you almost have to place the bullet in a hole the size of a snuff can lid to take a coyote cleanly, at any range., I would not aim for a solid point like a shoulder, due to lack of penetration. The best bet is below the ear, or a double lung shot