Okes, this has all to do with naked cast boolits and nothing to do with powder coated boolits, but I just opened this post in the powder coating section which I thought might answer a question I have, but it didn’t.
(For interest sake you can find it here: http://castboolits.gunloads.com/show...-not-to-Quench).
What is the negative thing about quenching in water straight from the mold?
Besides causing a “hardening “ when using a suitable alloy, the main advantage for me as apposed to air cooling, is the faster pace you can cast at. Because you can dump the hot boolts in your bucket of water in one swipe and go on casting, without the extra time it takes to carefully drop them on an appropriate soft surface to prevent hurting the fragile hot boolit, and because you don’t have an additional “hot pile” of stuff to be responsible for.