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<blockquote data-quote="OKCHunter" data-source="post: 3076651" data-attributes="member: 8534"><p>I use wheel weights or other alloys common for casting. Lead pipe, shower pans, etc. can be used but is too soft for applications other than muzzle loading type stuff. You would need to harden soft lead with tin and / or antimony to bring the hardness up for most bullet applications. Pure lead has a Brinell hardness of approximately 5; clip on wheel weights have a hardness around 11 or 12. </p><p></p><p>From Rotometals website:</p><p></p><p>For every 1% additional tin, Brinell hardness increases 0.3.</p><p>For every 1% additional antimony, Brinell hardness increases 0.9.</p><p></p><p>For a simple equation,</p><p>Brinell = 8.60 + ( 0.29 * Tin ) + ( 0.92 * Antimony )</p></blockquote><p></p>
[QUOTE="OKCHunter, post: 3076651, member: 8534"] I use wheel weights or other alloys common for casting. Lead pipe, shower pans, etc. can be used but is too soft for applications other than muzzle loading type stuff. You would need to harden soft lead with tin and / or antimony to bring the hardness up for most bullet applications. Pure lead has a Brinell hardness of approximately 5; clip on wheel weights have a hardness around 11 or 12. From Rotometals website: For every 1% additional tin, Brinell hardness increases 0.3. For every 1% additional antimony, Brinell hardness increases 0.9. For a simple equation, Brinell = 8.60 + ( 0.29 * Tin ) + ( 0.92 * Antimony ) [/QUOTE]
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