sureYnot
01-07-2019, 11:25 AM
We know that sizing boolits affects hardness (softens it, at least the outer bit).
Here's the situation. I have some old boolits (several weeks) that I've just sized. Sized them down about 0.007.
Here's the question(s). How much did I just soften them? Will the alloy reharden? If it does, would it take place at the same general speed as a freshly dropped boolit? Or have I just "broken" the crystals beyond "regrowth", and need to "reset" the hardness by heating them?
In the past, I've cooked them for an hour at 450F (quenched or not) to "reset" to a known hardness. I don't know the actual number of the hardness, but I do know how many hours/days I need to wait to seat them without problems.
Short version: Can I accurately operate under the assumption that a freshly sized (old) boolit will harden back to normal at the same speed as a freshly dropped boolit?
Here's the situation. I have some old boolits (several weeks) that I've just sized. Sized them down about 0.007.
Here's the question(s). How much did I just soften them? Will the alloy reharden? If it does, would it take place at the same general speed as a freshly dropped boolit? Or have I just "broken" the crystals beyond "regrowth", and need to "reset" the hardness by heating them?
In the past, I've cooked them for an hour at 450F (quenched or not) to "reset" to a known hardness. I don't know the actual number of the hardness, but I do know how many hours/days I need to wait to seat them without problems.
Short version: Can I accurately operate under the assumption that a freshly sized (old) boolit will harden back to normal at the same speed as a freshly dropped boolit?