I side with longcruise also,
Warm water NOT HOT, they call it "flash rust"
I use oil in the bore for storage,,,,yet I use a break cleaner type solvent to be darn sure I have all the oil's out prior to shooting,
A small brass brush makes short work of cleaning the exterior areas around the nipple and the nipple itself and the hammer. A toothbrush size brassbrush can be found at NAPA or about any autoparts supply for 3-4$..
Thar's a few more tricks out there toothpick,,you jus' keep readin'