I can press 14 grams with 3x5 plates, but I do use a pre-press mold. The mold I have is 2x4 but I think if I would have got the 3x5 mold, I coulda did an Oz. I bought my mold from here https://www.rosinpressplates.com/ because they was the cheapest. I wish I would have got my plates from there...