I have some Doubletap 135 Noslers, 165 and 180gr Gold Dots, 180gr controled expansion, and some 200gr FMJ's. I have a G20 that is all factory. I believe there is also a coyote problem, I thought I saw one the other night, I've heard them, and some neighbor's saw a few. I don't care much, live and let live, but our beloved cat dissappeared, and there are other strays that I feed, as well as my dog Sarah and I am worried they are coming too close. I have seen what they can do, and I am worried. Before that happens, I will help reduce their population so they will not need to come into human population, but if I have to kill I want to do it fast and painlessly as possible. I would fell horrible if I made one suffer, even a coyote. I know they are smaller animals, but how tough are they? Will a 135gr do the job, or do I need more penetation? 165? 180? Will the deep penetrating or FMJ work best?