More importantly is how they will pattern at that range...I've killed a bunch of deer with 00 and #1s, but all were within 50 yards...I take a 8 1/2 x 11 piece of paper, turn it on it's side and tape to a opened piece of news paper at 40 yards...If I can place 4-6 pellets into that
8 1/2 x 11, I know I can kill deer at that range...
Buckshot looses it's effectiveness at longer ranges...Now, If you are shooting coyotes, throw up a target, aim about 3-4 inches high and have at it...