It generally takes a very major trauma to stop an aggressive, determined, and very possibly drunk or high, human being. Think about the very nature of someone who has forcefully and unlawfully entered your home. This person has already made the decision to enter YOUR space, perhaps knowing full well that you and/or your loved ones are at home. And you'd better believe this person has at least made some cognizant evaluation of the potential consequences for the act he is perpetrating. It's very likely that this person does not fear you or your gun at all. This person is counting on his aggressive and very violent nature to force you and your family to submit to his invasion of your space.

With some basic understanding of the kind of threat we are dealing with here, we can now make a reasonable estimate of what it might take to neutralize a person in this psychological/physiological state. I don't think I would rely on a load of birdshot to get the job done.

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NRA Pistol,PPITH,PPOTH&TASER