I Just ran a 50 yard test on three different brands of 12 gauge Coyote ammo and two different chokes. They are Hornady heavy magnum 3" BB, Federal heavyweight coyote 3" BB, and Hevi-shot 3.5" T. In Oklahoma we can not use Buckshot ,so , I chose these three. I was shooting at poster board with a 10"circle. Remington choke(.660). Hornady XXXXX Federal 16 hits Hevi-shot 12 hits I called Carlson and they sent me a choke( .695). Hornady 6 hits Federal 21 hits Hevi-shot 14 hits The Hornady did poorly with the Carlson choke so I did not shoot it with the Rem choke. Federal and Carlson were the clear winners.