I had thought of making one that would hold a barreled action, but I never made it.
What I was thinking about was using a piece of heating duct from Home Depot, metal pipe about 8" in diameter, with a hot plate in the bottom. Or a charcoal starter, as mentioned. I hadn't thought of the light dimmer switch, but that is an idea, too.
A heat lamp bulb might get it hot enough.
I thought of using it vertical and just hanging the barreled action inside, and a cap on the top to keep the heat in.
If the heating duct pipe lost heat too fast, then I thought about wrapping it with fiber glass insulation.
But, I never did do it. Just throwing the idea out to see if anyone wants to try it this way.
