smoothshooter
50 Cal.
You don't want to overheat the wax or the oil. Using a double boiler helps you to maintain a guaranteed temperature that doesn't get above 212 degrees F.
I heat the beeswax in an old canned chicken can placed directly on the burner. Heat the beeswax chunks and shavings until melted, then pour in the olive or vegetable oil, and turn the burner down to LOW or OFF. Not worried about wax catching fire. If it does, I will lay a small lid over the can and smother it out. Wax catching on fire is not a catastrophe as long as you don’t spill it.