OK, so for various reasons, I'm looking for an ultra hard cast boolit for my 454. Aiming to get around bhn of 30.
Currently, while casting, I drop into ice water, size, then bake for 45 minutes at 455, 10 degrees below slump temp, then drop into ice water, again, right out of the oven.
From my understanding, the quicker, and colder you can get the boolit, the harder it will be.
My question. If I put about a quarter cup of picking salt in my 5 gallon bucket of ice, I'm pretty sure I could get the water temp to roughly 14 degrees F (-10 C)
Would that additional temp help get a harder boolit? And the big, kicker, would the ions in the water screw with the lead?
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