A couple years back I had a girlfriend that wanted to hunt. So we started with spring turkeys. I worked 3 long beards for half an hour while they were hung up at 60 yards and finally got them to break only to have her whiff with my SBE 12 gauge at 30 yards. She had the only gun. Digging through my gun safe I dug out my 20 gauge 870 wingmaster, a roll of camo tape for the barrel and a handful of high brass 6's. 1 shot confirmed it had a solid pattern at 25 yards so we headed for the woods the next Saturday.
I called in 2 jakes and told her they were both legal and to hammer one. My SBE was leaning against the blind wall when she dropped one DRT and it was so good an opportunity I grabbed the gun from her, jacked in another shell and leveled the other! Only time I've ever doubled on turkeys!
Those were 2 3/4" plain jane Remington high brass 6 shot out of a modified choked, 28" barrel and it killed those 2 birds stone dead at 20 yards.