I followed Smokes direction. Pre-heat (i preheated for 10 mins just to be sure) and cook it for 20 mins on the dot. I used Laser temp gun on the casts and they are around 390-400. I do stand them up and fill which is about 250 rounds per tray (Small toaster oven i think it was 4 toaster size) cheapo. I can load them 1.05-1.06 is good plunk WITHOUT PC, but I casted and PCed 2000 rounds..