I have never seen a coyote killing pattern at a distance of 70 yards. Fifty yards yes, but not 70. The 3" Hevi-shot T's shoot a slightly better pattern for me than the 3&1/2" version, and slightly beats Winchester 3&1/2" #4 BUCK, but #4 BUCK is less costly. I shoot a Beretta Extrema2 with a Burris "Speed Bead" attached. I have done a lot of pattern testing with various choke/load combinations. Every shotgun that I have known, will prefer a slightly different choke/load combo than it's twin brother. The Kicks "BuckKicker" X-full tube gets the nod for my gun.