How do you call a pistol??? LOL
From the 70's I've used .22's like the Colt Diamondback and S&W model 41 for squirrels, and 8" Python and S&W .41 mag for deer and pigs at ranges out to 125 or a touch further.
If you can shoot em and hit it's good.
Coyotes are predators that kill our animals here so I don't screw around, I want 100% for sure hit and kill ratios, I'm not doing them for fun or sport or I'd probably use a pistol.