Originally Posted By: OKRattlerOriginally Posted By: tripod3Another bullet thread that should have a long life with many interesting turns.
Hopefully just a lot of positive or at least informative feedback on heavier grain bullets. GC seems to have had good luck with the Federal Fusion and TSX. I know these "specialty rounds" are a little more on the expensive side which probably sways people that plan on shooting coyotes away from them. But I figured maybe there were a few out there who like to try new bullets just to say they did. I've shot and killed plenty of coyotes with the .223 to know what has worked best for me but I don't mind testing more out.
Terminal ballistics is all about transferring energy into the target. IF a bullet passes through a target it did not transfer all of it's energy into the target. Your top shelf "defensive" rounds are designed to transfer energy into the target. They use ballistics gel as an approximation to see how far into the target the bullet goes and the expansion characteristics to determine the effectiveness of the bullet design and load.
That being said, the rules are no different for predator hunting. You are trying to transfer energy into the target. But on a slim target, you have less density and therefore a much higher probability of pass through. Some bullet manufacturers will try to solve this problem by using a more "explosive" or rapidly expanding bullet design to achieve their goal. But that makes some assumptions and ignores some realities. It assumes that you are hitting soft tissue and not bone. But we all know that happens, hence the endless discussions around "surface splashes."
If a round is designed to impart enough energy to take down a man then it should have no problem with even the biggest coyote at maybe 50lbs. I have seen flat points, spire points, poly tipped, hollow points, frangibles and even FMJ's take down coyotes. Some just do it better than others. But better is a subjective term. Those who want fur would not agree that blowing a softball sized hole in a coyote is better. Those who are just looking to control populations would not agree that a bullet that won't make an exit hole but might result in having to track a coyote until it succumbs to it's injuries is better.
There is a LOT of "theoretical" discussions in the "defensive" firearms world because there isn't always data to support theories. In our world, fur on the ground tends to be definitive.