I think you would be justified under the Bill of Rights. Your protected from improper search and seizure. The officers could easily realize their mistake if they knocked on your door to serve the warrant and you point out they're at the wrong house.
Instead they choose to knock your door down and point firearms at you. I'd say your completely justified in returning the favor. Bill of Rights protects you from Govt agencies. Your gun protects you from Govt agencies. Their mistake, and possibly a fatal one. Everyone pays for their mistakes, even police.
That being said, I am not for shooting cops, I despise cop killers. However, you come to my house, kick my door down, and point a gun at me, I'm scared S***less and I'll defend my house and my family. If your a real cop, you have no right to be on my property threatening my life. I do not participate in illegal activity. If your a BG, then you have no right to be on my property threatening my life.