Bingo! At home defense distances, anything delivered out of a 12 gauge barrel is going to be fatal if you shoot center of mass.
Sorry...but, not true. This is the "magic wand" philosopy.
The 12 ga. is not an instantaneous "death dealer." Rather, it is simply an effective tool (although somewhat limited) by which you can greatly increase the odds in your favor, vs. other means, during a close range encounter...and nothing more.
To the OP- (
some of my comments may be somewhat off-topic).....
I wont get in to the whole "buckshot vs. birdshot" thing in detail, other than to say I would be just fine with either (for HD). However, for my own personal reasons, I generally prefer Low-Recoil 00 Buck to anything else. This could change, but probably wont.
Sure, within 10 feet or so it may not make much of a difference what you are using (emphasis on "may not"), but you just never know what a situation may call for. Besides, if one is going to be firing within 10 feet or so of the BG, I would like to think that catastrophic misses would not be likely. Possible with a SG? Certainly. Probable? Dubious.
Anything much beyond the range of 10 feet or so, well...the heavier, harder hitting loads just might come in handy. You just never know.
Regardless of buckshot or birdshot, the shotgun, when compared to most "effective" handgun loads, is fairly benign in terms of penetration issues, from what I gather. Many, many peeps continue to use handguns for HD (which are harder to aim, somewhat harder to master and again, more often than not, much more penetrative). Yet it seems the greatest focus, when it comes to handguns (for HD use), centers around "stopping" capability vs. overpenetration. Hence, the whole "birdshot vs. buckshot" thing has never been something I dwell on excessively.
Now, for those who continue to argue that using 00 Buck will almost certainly result in the imminent death of anyone in the next room or apartment...well, when taken as a whole, I just dont buy that argument. Keep in mind, birdshot too can sail through walls...dont kid yourself on this one. Sure, certain loads are more penetrative than others, but almost any fired weapon can lead to unexpected (and potentially disastrous) results. So, if one is constantly worried about such matters, my advice iwould be to sell the guns and simply use a knife, bat or whatever other means necessary for fending off a brutal assault.
Also, while Im certainly no mathmetician, many seem to focus more on spread (within certain distances) vs. paying just as much, if not more, attention to velocity+mass. Plus, I would imagine barrel length would affect the results to one degree or another. Ditto, most certainly, if we are comparing smoothbores to rifled bores.
Either way, getting hit by 9 hornets or 20+ honeybees...neither is a good thing. But, to me, higher pellet count does not mean much. Frankly, I prefer to load up with 9 hornets and just leave it at that.
If you prefer something else, thats fine as well. Being armed is still being armed.