Not that I remember. That doesn't sound like something I'd support at all. I'm not even keen on the Castle Doctrine.
ETA: The closest I can remember is one of the 4th Amendment threads. For the most part, I argued in favor of the more expansive interpretations, and the question was about what evidence was admissible, not about when lethal force was justified. In the case in question, police were doing an undercover drug buy, and the bad guy took off running. Police chased him (or them, I don't recall) into an apartment complex, and thought they knew which apartment he entered. They busted into the wrong apartment, but while there, saw evidence of a felony. I supported that evidence being admissible. Their entering the correct apartment would have easily been OK without a warrant, but going into the wrong one was a reasonable mistake in this case. They weren't obliged at that point to ignore what they saw. Anyway, it had nothing to do, IIRC, with justifying a shooting. If you remember otherwise, please point me to the topic or thread. I own up to a very poor memory at times, but that doesn't sound like a position I would take. If the question was whether the home owner reasonably thought his life was in danger, then I would probably support his use of deadly force (but I don't remember a thread on a situation like that). That's really what the issue hangs on as to when deadly force is justified. There are somewhat different issues with a resident at home compared to a law enforcement professional (related to training, what methods are available, etc.)