I am just curious as to how many hunters out there use a 20 gauge for grouse and woodcock hunting? What loads do you use? What shot size? Who makes the best shells for hunting with a 20 gauge (Federal, Remington, Winchester)? I just purchased a Ithica/SKB model 500 with 26" barels in a 20 gauge for grouse and woodcock hunting this coming fall and looking for some advice. I am a dedicated grouse hunter and have been using a Ithica/SKB 100 12 gauge SxS for the last 17 years.