Originally Posted by
Maury Krupp
What appears to be overlooked here is why grease was prescribed for the M1 instead of oil.
The M1 passed all its acceptance tests and the first six years of its service life lubed with the same type of oil used on the M1903
It wasn't until rifles started jamming in combat when the oil was washed off by tropical downpours in the SWPA that Lubriplate was adopted.
Even then it was picked for its waterproof properties and availability off the shelf; not for any special lubrication properties.
So unless you plan to get into a firefight in New Guinea during the rainy season, one grease is probably as good as the next.
Maury