I got one of these as a gift, with the water based cleaner. It is .30 caliber, so I tried it on a .30-06 after a box of ammo. It seems to clean it well. I was not sure, so swabbed it with hot water, being leery of a water-based cleaner, then oiled it.
Is anyone here using these? Seems it would be good for old rifles with corrosive ammunition, though I mostly pull the bullets from those. ( But I have a ton of .303 WWII surplus).