Best way to make 20:1 alloy with 95/5 solder

[fatelvis]

Hello fellas, for anybody that can actually use their alloy calculator, how much 95\5 solder would I use to pure lead, to make 20:1 alloy?
I realize that the Antimony will add a little hardness, but I’m trying to make a good alloy for my 9mm 125grn HPs, and have them mushroom nicely. Thanks guys!

[cwlongshot]

I hear ya. I been confused many times. So much so I now wont use anything by 50/50 or pure lead and tin.

Its like Alchemy to me. Needlessly confusing.

Sorry man

CW

[USSR]

9 lbs. pure lead and 0.5 lbs. of your 95/5 solder. Of course, you will have a minute amount of whatever the "5" is in your solder, but it will essentially be 20:1 alloy.

Don

[DGV]

95% Lead 5% Antimony will make that 20-1 not 20-1. find some 50-50 solder and go that route

[bdicki]

The calculator lists 3 95/5 lead free solder, they have .25 copper, or .25 silver, or .25 antimony.

It lists 20/1 as 4.76% tin and 95.2 lead

1 pound of 95/5 and 19 pounds of pure lead comes out to 4.75% tin and 95.0% lead The missing .25% is one of the listed metals above.

I make a lot of 20/1.

[fatelvis]

I heard that 20:1 would be a good alloy for hollow point expansion. Will I be able to push the 9mms to 1050-1100fps without problems? Maybe the 5% antimony in the 95/5 would help strengthen it? I understand that it WILL harden it, but also make it brittle, but hopefully in this small amount it won’t make the petals break apart.

[Drm50]

I don’t have a calculator. Without getting into math if the 95% is tin, then 19 Lb lead would be close enough.

[bdicki]

I heard that 20:1 would be a good alloy for hollow point expansion. Will I be able to push the 9mms to 1050-1100fps without problems? Maybe the 5% antimony in the 95/5 would help strengthen it? I understand that it WILL harden it, but also make it brittle, but hopefully in this small amount it won’t make the petals break apart.

How do you know it's antimony? Anyway if you look at what I posted it's only .25% after mixing. I pushed 45 LC load hard with powder coated boolits and never had any leading.

[USSR]

This alloy is 97Pb/2.5Sn/0.5Sb, which is slightly softer than 20:1. Velocity of the bullet on the right was 940fps, the middle bullet 845fps, and the left bullet about 800fps. IMHO, 20:1 will get you slightly over 1,000fps with good expansion.

Don

[fatelvis]

Thank you Ussr, that is very helpful!

[cwlongshot]

In my own testing. 1200 is magic for a HP and expansion. Of coarse a large HP opens a bit sooner a nd a smaller a bit slower. But 1200is my velocity for 20:1.

CW

[fredj338]

95/5 Tin/Antimony - For use in air conditioning, refrigeration, and high-temperature applications. It has high strength and a matte finish, and melts and flows like 50/50 tin/lead solder.
ITs pretty much all tin so I would treat it as such. DOnt over think alloy & bhn.
For LHP, I like 20-1 with larger HP under 1000fps & 25-1 with smaller cup points 1050-1200fps. When going over 1200fps I like 20-1 in smaller cup points.