For factory loads, Lead BB shot or lead number 4 Buckshot work good on coyotes. If you reload shotgun shells the lead BBB and lead "T" shot that BPI sells are both great sizes to reload for coyotes.
The BBB and T shot sizes both have quite a few more pellets per shell compared to number 4 buckshot.
If you can't shoot lead shot at coyotes HW13 BB shot and TSS #2,#3 and #4 shot all wok great on coyotes if you reload shotgun shells.
