How long does it take a cast boolit to reach it hardest?

[swynn]

How long does it take a cast boolit to reach it hardest and does it start getting soft agin??

TNX in Advance

swynn

[Wayne Smith]

That completely depends on 1) boolit alloy and 2) speed of cooling said alloy once it is formed, carefully and neatly, into a boolit.

[curator]

Lead-tin alloys show little to no age hardening/softening. Lead-tin-antimony-arsinic alloys air cooled, about two weeks, water-drop quenched should be up to 95% of maximum hardness within 48 hours. Small additional hardening for the next two weeks then gradual softening (about 1 BHN each three months or so unless stored in deep freeze at 0 degrees Fahrenheit.)

[runfiverun]

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