Light guns are great for grouse, woodcock, and for mountain chukar. They're great for turkey hunting, where you carry the gun all week and shoot it once. For almost everything else, a shotgun with some heft works best. That's not to say I don't have some light guns I love: a 6 ½ pound 12 gauge Ruger Gold Label; a 6 ¾ pound Montefeltro and, lightest of all, a 5 ¾ pound 20 gauge SKB 100 which, frankly, is great for carrying and for straigthtaway shots at woodcock and not much else. I yearn for a 6-pound, 12 gauge Benelli Ultra Light, which is a great carrying gun for long walks after upland birds.