Lead Hardness

waltermoe

March 30, 2021 00:28

Anyone know how hard the lead is in 22 rimfire ammo?

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  iceracerx

  March 30, 2021 01:26

  I imagine that it depends on the velocity. Standard velocity target 22 should be around 10-12 on the Brinell (BHN scale). High velocity should be between 14-20 BHN and Hyper velocity should be 20-30 BHN.

  Pure lead is 5 BHN.

  www.pnjresources.com/Hardness of Lead Alloys.htm

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  chiefr

  March 30, 2021 11:23

  Many variances between brands and even lots. Best check with each manufacturer or DIY with a BH tester.

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  mac10

  March 30, 2021 14:43

  use the bite test 😁

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  waltermoe

  March 31, 2021 00:30

  Thank you for the insight.  I didn't think it would be very hard in comparison to some of the other lead I've used before to cast bullets.

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  mohawk600

  March 31, 2021 02:44

  Do the rounds de-form in flesh?

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