Howdy
I used to buy bullets from a local caster. All his bullets were lubed with a red colored lube. Most everybody else used a blue colored lube. One day I asked him why his lube was red. He said so that when people complained about the quality of his bullets he could show them they were not his. Everybody else used blue, he used red. For normal use with Smokeless Powder, absolutely no difference, other than the color.