We may not agree on freezing woodcock whole, but Geo and I agree on shooting to kill home intruders if one is in fear of own life or that of others in the home. There are no Marquis of Queensberry rules or Geneva Convention restrictions regarding choice of ammo in such situations. One issue of using rifles or handguns in such situations is the danger of shooting through a wall and hitting a family member. That's another reason for the choice of a bird shot loaded shotgun for home defense. Here's a short video of what a .22LR round can do inside a home penetrating wall boards. Gil
https://www.youtube.com/watch?v=1pSVn7ozXTQ