I like all of the current comments so far. I appreciate the criticism over the rubber slug. My view is this... If a slug dumping a large amount of energy on someone doesn't stop them, the 00 would have almost the same effect, just a bigger mess to clean up. That is if pain wasn't felt by the intruder. But I would keep pumping and dumping while the wife was calling 911. It's only the 1st round that would be potentially non lethal.
First off...unlearn the term "energy dump". It's a null term used by folks who don't understand wounding mechanisms. Blunt force trauma from your rubber slug will do the damage...however, it's not the type of damage that can be relied on to get a stop. Cops use these rounds in certain situations, and only when there's other cops there with guns loaded with REAL bullets for when it fails. You do not have that option.
Second--you assume you'll be granted the opportunity for more than one shot. Besides pointing out what "assume" means, I'd also point out:
Assumptions are awesome when they're actually right, but they sure can hurt when you're wrong.
In short--the other person--that guy you're trying to shoot? Yeah--he's got a say in how things will happen as well. And odds are, it won't be the way you think it will be.
Remember--a person can cover 20 feet or so in well under two seconds. In reality, how many shots on target to you think you'll be able to get off?
So--why not make it a round that will actually make them stop because they've had deep, penetrating trauma to major organs and blood vessels, and (if you're lucky) CNS that will stop 'em in their track, and not a round that'll just leave a big ol' bruise?
Hey--your family, their lives....but, if things have gone so far sideways that I've
using lethal force...I'm gonna use lethal force, nothing less.
I'm not going to get into the legal can of worms you can open up using such rounds...but they are something to consider.