There is a modest amount of writing from the 1920’s up through the 1950’s about the use of wax and grease as a bullet lubricant.
The British used a variety of means to lubricate bullets whether swaged, cast or jacketed.
In the U.S. there were a few patents taken out on lubricating paper patched and jacketed bullets.
Here is a little bit from C.S. Landis in Woodchucks and Woodchuck Rifles – 1951.
Wads under jacketed bullets and lubricants on jacketed bullets were falling out of favor by this time.
There is a great deal of discussion on wads and bullet lubricants in the 1920’s Arms and The Man. In general Whelen and other Arsenal types were against it and Competitive shooters and some hunters – Stewart Edward White – were in favor of it.
Someone said that lead bullets are different story and perhaps they are. A great deal was written about wax lubricants on lead bullets. The US Cartridge Company putting out a circular on the advantage of waxed bullets in their NRA .22lr ammunition.
Jack O’Connor mentions protecting the bore of rimfire rifles on page 167 of the Rifle Book.on page 167.