Hooligan, there's a Bill Mauldin cartoon of a GI in basic, scrubbing his M1 in the sink. The caption reads "You've got the right spirit private, we'll work out the details later" from post #28 above..
I recall a Saturday at summer camp and things were MUDDY. Two guys went into the shower and all the M1s along with them. Then Stack arms outside for hour while we cleaned up and the the rifles were cleaned and oiled.
Showers looked like hexx when rifles were done but rifles were MUCH cleaner. This was Ft Knox red clay that was washed off the M1s.