Once again, I'll make the point that (one I make every time this discussion comes up), if there is oil or other lubricants in the bore of your gun, or on the bolt, etc., plain water may NOT be enough to remove all traces of corrosive fouling.
That's why bore cleaners used by most militaries contained alkalies, soaps, etc.... to REMOVE any oil that might be hiding traces of corrosive priming.
That's why it's a good idea to adopt the same cleaning process that served well militaries world wide for many decades.
Adding a little bit of soap or ammonia or whatever to your cleaning solution isn't hard, its not going to hurt anything, and in fact, it may well stop PREVENTABLE damage to your gun.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.