You can claim anything you want. Whether the prosecutor agrees is another matter.
Massad Ayoob wrote of a gunshop owner who foiled a robbery years ago in which the owner fired at an oncoming vehicle with both a S&W 76 submachine gun and an AR-15, killing the driver. I believe it's in the current Guns or American Handgunner magazine.
Again, that was years ago, on his property and in the rural U.S.