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Lead alloy compositions?

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09 April 2003, 20:18
Danny Pay
Lead alloy compositions?
Hi
I received a ten pound alloy called stilmetal(84% lead+12% antimoin+ 4% tin)is it linotype or somewhat harder alloy? what is the composition of linotype and wheelweight alloys? how many % antimoin is enough for hard cast bullets?
Best regards
Danny
09 April 2003, 23:21
Lloyd Smale
pretty simular to lyno looks like it is a little lacking in tin compared to lyotpye but it sure should make nice bullets!
10 April 2003, 05:36
waksupi
I beleive I would alloy it down until the antimony was no more than 4% if you will be using it for hunting bullets.
10 April 2003, 10:51
<Yspen>
When I asked for lino at my local Lead&Solder dealer I was given a bar that was marked - 11% antimony , 4% tin .
Bullets from a 500gr mould weighs in at 450gr .

I have since alloyed it to give a softer cast .I much more prefer 5/5/90 - it is hard enough .

Ben
11 April 2003, 09:00
sundog
Yep, that's what I'm thinking. Too much antimony. Water it down and add tin so that overall antimony does not exceed tin at about 4%. Can always water quench or heat treat for more hardness. sundog
12 April 2003, 13:22
<45-70 Govt>
I've cast and shot a lot of linotype with lead and tin added to make 5/5/90 (#2 Lyman Alloy) which is my favorite to cast with and have mixed Lino 50/50 with lead for approx #26 Alloy which works well too. I've also mixed Lino with wheel weights to get same relative hardness at #26 using SAECO hardness tester. My source for cheap reclaimed Tin dried up so have been making more #26. Have not had good luck if Tin exceeds Antimony.
12 April 2003, 16:06
waksupi
Linotype is composed of 12% antimony, 4% tin, and the remaining amount lead. Monotype would be 19% antimony, 9% tin, and the balance lead. Stereotype in 14% antimony, 6% tin, and remainder lead.