3 inch Gp100 in 44 special or even a 10mm unless the OP is absolute on the 44 mag. I have never had a coyote even wait for me to get a shot off if an unexpected meeting, his reflexes are better than mine! I have killed 8 with 22 lr, and quite a few more with various centerfire rifles, all 100 yards or more. They are way skiddish around here, we shoot them on site!