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August 4, 2013, 04:19 PM | #1 |
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Join Date: May 12, 2013
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#2 Alloy in Lyman Manual - need a comparison
Please compare hardness in #2 Alloy versus S&S .45 ACP LRN 230 grain.
Thanks. |
August 4, 2013, 05:13 PM | #3 |
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Join Date: May 12, 2013
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Thanks Jepp but could you break that down into English with a little simpler explanation?
Also is Lyman #2 a brand name? Again, thanks for the quick response. |
August 4, 2013, 05:27 PM | #4 |
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Lyman #2 was an alloy commonly used. It defines a BHN that can be varied based on who the bullet is quenched. The link I listed:
Description Hardball Bullet Casting Alloy consists of 2% tin, 6% antimony and 92% lead. Each ingot measure approximately 8-1/2" x 1" x 2" and weighs 6 pounds and has 4 Notched blocks that are easy to cut through on the low sections This modern version of the old Lyman #2 is an excellent all-around alloy for most handgun bullets and many higher velocity rifle cartridges. The Brinell Hardness of Hardball Alloy is about 16. Is an alloy commonly available today. It consists of 92% lead, 2% tin, and 6% antimony. Air cooled it normally runs around 16 Brinell hardness number. That is the alloy SNS Casting uses for all of their bullets. It is considered "hard cast" and to get the bullet to obtruate properly requires higher pressure than pure lead. I normally try to run them in the 23K to 30K PSI pressure range.
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August 4, 2013, 05:42 PM | #5 | |
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