None. I once shot a coyote with a 257 Roberts, 87 gr HP. It almost cut him in half. Little hole in, almost all hole out. On the other extreme, a friend shot one with a 223 FMJ bullet and spent 2 hours tracking the wounded coyote, then finished it at 200 yards. It left a very small blood trail.
I guess it's not worth asking about factory loads these days as there is practally nothing available. I did score a single box of 308 Hornady Black 155 gr A-MAX. Red plastic ballistic tip. That should work. I realize 308 is overkill, but where we are going you have to leave the carcus where it drops untouched. My only other scoped rifle is a 338 Win Mag A-Bolt and that's even more overkill. Wish I had a BLR in 243, but can't find any anywhere.
I load 125 gr sierra bullet behind 55 grs imr 4350, very accurate at 100 yrds from my 30.06 A Bolt, I can cover 3 rounds with a quarter. Haven't yet shot a yot but I am anxious to try it out.
If you’re not worried about fur damage then the 155 Amax should do fine; better than FMJ I would guess. I called in a Yote to 150 yards. 308 win BLR in hand and a 165 Nosler BT in the chamber. Wanted to see if he would come closer, but he slipped back into the willows and never came back out. Would have liked to see what that load would have done. A few months later I dropped a 5 point bull elk in his tracks with a 165 Nosler Accubond (212 yard shot). Love that 308Win.
