To add to Miller's comment about fullchoked .410's being unnecessary, my NID ejector gun has a cylinder bore in the right (something done by a prior owner to this nice, rare 28" gun) barrel and kills pretty darn reliably on quail out to about 30 yds with a 11/16 oz shell, chukar about the same distance and pheasant about 25 yds (shot sized appropriately, of course). I feel the .410 with a 2 1/2", 1/2 oz load, and a cylinder bore, is about as good as a .410 will get at skeet distances.