Originally Posted by 12boreman
Idaho is the only state where you can use a shotgun bigger than a 10 gauge for hunting upland game. In Idaho they have a shell length restriction not a gauge restriction. The upland game proclamation says no shell longer than 3 1/2 inches.

Idaho is not the only state where you can use a shotgun bigger than a 10 gauge. Arizona allows the use of an 8 gauge.