I have got a .223rem. I shot a coyote last night with not a great shot but still respectable. I had to put 3 in him and the third did the charm. I am currently shooting remington premier varmint accutip bullets 55gr. I also have a box of winchester bst 55grs I haven't shot. What is the best bullet to use that will give me good knock down power from a .223? Pelt damage isn't a factor.