I take my range brass which is still pretty much clean and lube/resize/deprime then tumble it to clean the dirt, lube, and primer pockets all at once. When I put the brass in the oven it shrunk down and the resized necks were too tight to hold a round so I had to re-resize the brass. I don't need to be a star in metallurgy to know that putting brass in the oven can seriously ruin your day, especially if you're reloading for a semi-automatic with a chamber that sits right in your face, like the Garand.