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View Full Version : 80%Lead/10-15%Tin/6-8% antimony Help with mix for BOOLITS



JesterGrin_1
08-29-2008, 05:41 PM
I purchased some of this today from a type setting company that is no longer doing this.

Could someone give me an idea of what mix would be good for .357Mag .44 Mag and 45-70 Marlin with warm loads over 1700FPS.

Thank You all in advance. :):castmine:

wiljen
08-29-2008, 06:00 PM
Wow, that's a lot of tin, Especially compared to the antimony present. I'm thinking I'd mix with something antimony rich and Tin poor to try and bring that ratio back in line. Maybe something like 6% Antimonal lead as is used in roof flashing. WW would work too but with a bit lower antimony concentration, you'd be lowering the antimony % as you cut the tin too.

imashooter2
08-29-2008, 06:51 PM
Sounds to me like you have the tin and antimony percentages reversed...

HeavyMetal
08-29-2008, 08:19 PM
I agree! Getting that much tin in "Solution" is a lot of work.

I'd say 80% lead 12% antimony and 6 to 8% tin is more in line with type metals

JesterGrin_1
08-29-2008, 09:12 PM
I will have to check on it again with the %'s.

So would you mix this 50/50 with pure lead?

imashooter2
08-29-2008, 10:20 PM
No. More like 3:1.

wiljen
08-30-2008, 08:00 AM
If your percentages are reversed, you have linotype.

I'd look at
http://www.lasc.us/CastBulletAlloy.htm

It has a lot of good alloy information.

HeavyMetal
08-30-2008, 10:02 AM
The alloy you mix will depend on how "hot" your loads are.

For average velocity loads in the three calibers you mentioned 3WW to 1 lino is a good mix.

If you have a long barrel, say a 14 inch Contender, and plan on full house loads you may want to go 2 to 1 in both Magnums.

Echo
08-31-2008, 02:46 AM
I like a little more tin in my alloy than most folks, so I mix lino w/WW's 50/50. That produces an alloy with something over 2% tin and about 5% antimony. Dang good alloy...

wiljen
09-02-2008, 11:21 AM
You will need to find some antimonal lead. Like 6% Flashing. That way you can cut the tin % without cutting the Antimony. As it is, that Tin concentration is way high for normal use.

JesterGrin_1
09-02-2008, 11:26 AM
I am just going to run with the idea that the tin and antimony is reversed as I can not find anything with the amounts they have informed me of except reversed lol.

But then this would not be Linotype but Stereotype lead. Hard Stuff I have to say.

Alloy Tin% Antimony% Lead% BHN Arsenic
(Trace)
Foundry Type 15 23 62 ? No
Monotype 9 19 72 28 No
Stereotype 6 14 80 23 No
Linotype 4 12 80 23 No

Bass Ackward
09-02-2008, 11:46 AM
You NEVER want to have more tin than antimony or you will get soft spot formation around your bullet which means that you are wasting the antimony. The softest spots will be as if the mix was only lead and tin. In this case, looks about like 10-11 BHN.

So if true that the mix has more tin in it, then you need to add more antimony before you dilute it any other way first. Or you are going to have a mathematical nightmare that risks tying up even more good metal to correct.

You can buy antimony here. Fairly easy process really if you follow the instructions. But if you can follow instructions, it's going to make you wish you did real quick. Don't ask me how I know. :grin:

http://www.theantimonyman.com/

JesterGrin_1
09-02-2008, 12:14 PM
It is 80% lead,10-15% antimony, and 6-8% Tin. As others have said they got it reversed lol.

But I will ask if anyone needs any of this? The person will sell it for $1.oo a pound plus shipping if need be.