i have sat back and watched this one. i must say, i really wonder about how much experience some of you here really have. "calmly shooting" a trophy buck of a lifetime in the back of the head? you know you just blew the rack into pieces? and that is if you can hit him in the back of the head, as most deer move their head alot when they are standing still, let alone moving. and, what if you are trailing a deer that you have already shot, or some else has already shot, and he gets up out of his bed, to run away, putting that animal down is the most ethical thing there is, even with a 'texas heart shot'. never say never. and please dont tell me about how if an animal is wounded, that someone messed up. things happen in the woods. twigs appear, people flinch, animals move. it happens.
the fact is the smaller bores can work, but those using them are putting limits on what they can and cant do. things like bullet selection factor alot into the equation; but a capable caliber along with good bullet selection is a winning combination. prepare for the worse, hope for the best.
one more thing....if you can calmly shoot at the trophy buck of a lifetime, you should quit hunting. Lord knows if i ever lose the rush i will hang it up.