[quote=“Ray Meketa”][quote=“AKMS”]Thanks Keith,
I suspected that getting tha paint on the bearing surface of the projectile would be a bad thing.
I’m not sure why that would be so. Artillery projectiles, 20mm, 30mm, and 40mm are routinely painted for identification and protection. Many steel cased small arms cartridges are layered in a heavy coating of shellac, varnish, or whatever. I would not think that any small disadvantage of paint on the bearing surface would trump the advantages, especially when we’re talking about military ammunition. Many things far worse than paint go down the barrels of those weapons. JMHO
The main problem with an excess of paint on the projectiles may be a build up paint residue in the mechanism rather than in the barrel itself. The paint on artillery projectiles is hard and dry when it is fired and is relatively thin compared to the bore area. The lacquered coating on cases usually stays put on the case and not in the chamber. The paint used for target marking was fired whilst still soft and tends to be a bit thick and “blobby”. As an aircraft MG fires many more rounds than an artillery piece then paint accumulation on the ammunition feed chutes and gun feed mechanism may have been a problem.
The Royal Air Force used a similar method, pouring the paint into a shallow tray or dish (similar to a Turkey roasting tin), coiling up a length of filled belt and lowering the bullet tips into the paint. The amount of paint on the bullets would have varied greatly, depending on the initial level in the tray, how many rounds have been dipped etc.