I guess what I'd like to see is some yard by yard penetration results for birdshot, from contact distance to the point where any effectiveness tails off. Bottom line, nobody (that I know of) hunts deer with birdshot, so I think it's safe to assume that there's agreement that there's a limitation at some point, no matter how big a fan you are of birdshot at across the room distances.
I've seen too many reports of "surface damage only" or tests suggesting inadequate penetration to be comfortable guessing what that distance is, or counting on being within those bounds when push comes to shoot. Add to that the complexity of different ammo and chokes and its just too much of an unknown for me to risk.
Last edited by RufusG; 07/29/11.
