I bought a large B&D convection toaster oven at WM for $59 and it works great. The inside dimensions are 16''wX12"deep. I use the middle shelf and it comes with a slide in tray also that put in the bottom slot to act as a baffle. This seems to keep direct heat off the bottom of the bullets. I open the door about 3 times during the cycle and shake the wire tray that I made for about 3 seconds. This seems to keep them from sticking.
I did shoot about a hundred yesterday. I loaded 50 that I sized from .357, which was the final size after coating, down to .356. The other 50 were the .357 that I didn't resize. Both sizes shot about the same but the .356 ones seemed to be a tad better. I sprayed some Hornady One Shot that I use on my cases before loading and ran the remainder back through the sizer. They really went through much easier and the coating looked better.
I threw out the rest of the original mix and mixed another batch. Coated another batch this morning and it appears to be much lighter. I'm letting them sit as I have another small project going on. I did shake the powder really well before I dipped it out of the container, as I did the first time.
Thanks you guys for all the tips and advice.