TNHagies
Actually, I do just the opposite, I store my sidelocks, muzzle up - that way a small amount of protective oil will drop into the breech area and into the flash channel to protect that area from rusting. I put a piece of leather leather around the nipple and the hammerdown on the nipple.What little oil there is will be collected by the leather collar around the nipple.
When Iget ready to shoot next -shoot a shot of compressed air through the nipple pop a few caps and all is cleared.
It is my feeling that after giving the hot bath treatment and stripping all the oil - the breech area & flash channel, which will now have flash rust in them can use the protection of a quality oil also.
Here is a pic of the leather collar...