3" Mag Double
I have had it happen a few times over the years with various guns. I usually shoot lighter loads for targets so usually not to bad. However there was the time in SD on a pheasant hunt years ago with a Win M-21 20 gauge Magnum (30", F/F, 3" chambers) when I was shooting 3" Remington Nitro Pheasant loads with 1 1/4 of #5. Doubled on me twice and it got my attention both times. Time to swap guns out !
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