yes, there is, I've done that with some of my cast bullets just to see if it could be done.
I got a piece of quarter inch wire mesh that would cover a broiler pan, formed it around the edges so it would hold the bullets off the pan, placed the bullets on the mesh, put it in the oven at 300 degrees, until all the bullets were denuded of lube, and just ran them through the luber/sizer again.
Works pretty well.
Amy