For my cartridge bullets, I have used mutton tallow and beeswax, maybe four parts mutton to one bees. Wax is NOT a lubricant, just a thickener. The tallow must be rendered, as in heated until liquid, then strained thru cheesecloth. Keeps forever without going rancid.
I also use Olive oil and Beeswax, about 5 to 1.
Tom