Could be, but what you talk about is the plug in the gun. I always leave my plug in, for rabbit, Pheasant, squirrel, etc. Even when I put the slug barrel on...If I cant drop it with 3 shots, it wins. I only carry 6 slugs when deer hunting....never needed more than 2. ... some state areas dont allow more than 10 shells with each hunter in the waterfowl blind ... dont think that is a fed reg... could be.... I know at Kankakee F&W area non-toxic loads are required for all shotguns and game, even Turkey or coyotes.... I use Heavy Shot non-Toxic Turkey loads if I hunt the place for Turkey ...