There's those that swear by 'em, there's those that hate 'em. Plain old .22's have killed a lot of deer over the years. A .17 cal. pellet gun could and I suspect has killed a man. Heck, when I was about 4 or 5 I hit a kid about 12 in the back of the neck with a rock a knocked him unconsious. Are you getting my drift?
I'm betting the buddy mentioned above is a crack shot and very diciplined as well. Like Inspector Harry Calahan said, "a man's got to know his limitations". To each his own, but you have to operate within the spectrum you set for yourself. I like to be able to shoot at runners, I like to be able to shoot at good distances, I like to be able to shoot through a little bit of brush now and then. IMHO, a Hummer would limit my shooting too much.
But opinions are like......