Bill was kind enuf to send me a few silicone sheets to try out in place of the anti-stick foil and I just finished baking a few.
Overall, I like the silicone sheets better than the foil in that there appears to be less powder residue on the silicone surface and that melted resin was relatively easy to flick off and get the sheet ready for the next cook off.
Thank you Bill!
Accurate Molds 418 grain .459 bullets for my .45-70 guns, Eastwood Ford Light Blue powdered, about to got into the oven ...
... and out of the oven ...
... notice the nice clean bases ... they're now ready for the .459 sizing die ...
Lee 346 grain .459 bullets, Eastwood Gloss Clear, ready for baking ...
... and 20 minutes later, ready for sizing ...