Remington Subsonics. They seem to be the best shooting ammunition in my .22s. As a bonus, they are relatively quiet, and don't seem to alarm other animals too much.
The 38 grain hollow point does expand, though does little to no meat damage when I am forced to take a body shot.
Last fall, I shot a Coyote at about 15-20 yards incidental to hunting squirrels. Round entered behind the shoulder and he hit the ground, graveyard dead, nary a step.
Last edited by J23; 12/16/14.