Soap and water do just fine. Adding extra 'stuff' is just fine if it makes you feel better...
Actually, I used to use just PineSol and water -- cleaned the heck out of things.
I added 10% Ballistol when I found I was literally flash-rusting
in the time interval of leaving the
barrel wet-to-soak while getting my target frame down, and before hitting things with BreakFree.