Never knew these things existed untill I spotted a box today: 3" 000 buck, 5 pellet 410 shells.

Before everyone starts yelling, don't worry, I don't plan on taking them into the deer woods. My question is, what good are they? I bought a box for kicks and am curious how they will pattern, but being a city slicker I won't get a chance to try them for a while. I suppose they would be good for home defense but that does me no good, us Canadians aren't allowed to defend ourselves.

What are your thoughts, will 5 pellets coming down a 410 barrel single file retain any energy or pattern at all? Would they retain anywhere near that of 000 buck out of a 12g?