I suppose the fire danger would depend a lot on what the ambient air temperature is when you're hunting. My neck of the woods is Northern California, and our deer season starts the second Saturday of August. It can, and often is, above a hundred degrees for opening day. Many patch lubes,both commercially produced, and home brewed, are fire bombs in this heat. Crisco, and even some of the commercial lube have way to low of a flash point, for this area. I have found that any hard tallow works pretty well, if a little mink oil is added to it to make it soft enough to use. But, don't add bees wax or you will defeat the entire high flashpoint thing. Nitrated paper cartridges, made from cigarette paper will also hold a spark for quite some time. I haven't used military type paper cartridges for hunting, but in this area I would do a lot of testing before I went into the woods with them.
Hungry Horse