The local dog-control officer recommended the Remington 12 GA 2X6 Duplex Turkey load as the ultimate tool for feral dogs and coyote. He used to send a dumpster of 1,000 lbs worth of dead dog off to be rendered every month.
I've found #4 lead turkey loads to do a very adequate job when the need arose during season. When I'm not hunting turkeys, switch to #2 high-brass lead.
