The idea and theory behind moly coated bullets is less work on the barrel, less barrel fouling, longer barrel life, and more accurate shooting.
Moly coated bullets have been around for a long time now. Molybdenum disulfide is a very “slippery” product with great lube properties at both high heat and high pressures. Moly coated bullets are proven to reduce pressures as well as velocity. Typically pressure is reduced by a larger percentage than velocity.