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I've dropped W-W alloy bullets from the mold into a 5 gallon bucket of cool water, removed them, and set them to dry. About a day or so later,I've measured 9-10 on my Saeco tester. Shot through 1/8" steel at 25 yds. with a midrange 44 mag load.(1100 FPS or so) Once you get a good casting rhythm going,the hardness achieved is pretty uniform and faster than oven heat treating.
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