I'm not sure how I forgot to post this over here last spring, but here's my small "collection" of coyote choke tubes. The smallest of these tend to only pattern well with shot sizes that I consider to be too small for coyotes except in heavier-than-lead options, and the largest tends to only favor super-sized shot that offer poor pattern density or low shot counts. I hang out in the middle of these - the 0.670-0.680" ballpark with the old version Carlson's Hevi-shot Dead Coyote choke or the Tru-Glo Gobble Stopper, with #4buck lead shot. That's been my best killing performance, offering good shot counts, high pattern density, and hard hitting killing power.