Landyboy: Over the decades I have had two different government predator control agents (one in Ekalaka, Montana and the other in Miles City, Montana) suggest (it is what they use) the Speer 52 grain hollow-point flat base #1035 for Coyote pelt friendly service.
Do not mistake this bullet with the Speer 52 grain hollow-point boat-tail #1036.
I have used this bullet (31035) and have a lifetime supply of them - my latest Speer Manual (#13) shows they still make this bullet.
Be sure and try this bullet for your needs.
Best of luck with whichever you choose.
Hold into the wind
VarmintGuy