OK so you want to check into eBay after Christmas looking for a company called Stakich, and you should be able to find it for around $3.25 a pound, direct from Michigan, Dutch auction style. Toward February, you will find Stakich runs a special with a fixed price no matter how manny pounds of the stuff you buy, usually around 6 bucks. So if you buy 1 pound it'll cost you 6 bucks shipping, if you buy a half-ton it will still be just 6 bucks for shipping. They often have ton of the stuff (yes I mean 2000 one pound bricks), and it's proper beeswax.
For a lube, mix one part melted beeswax with two parts warm olive oil, or melted crisco, or plain melted lard. It prevents rust, lubes patches or projectiles, greases up internal parts, doesn't go rancid, has a higher melting point than plain crisco, and is non-toxic. If you want to "duplicate" a commercial lube, add some food grade wintergreen to the mixture. It costs pennies. For really hot weather, go with a 50/50 mix.
It WILL however, gunk up a muzzleloader quicker than plain spit-patching, but the gunk does stay soft as with the commercial lubes.
LD