percentage of tin

[turtlezx]

????? if my boolit mold drops at 230gr with normal lead mixture
if a cast boolits with solder what will the boolits weigh with
70/30 60/40 50/50 ??

did this with a 255 gr mold and they weighed 217 gr from babbit
what would that % be ??

thanx turtlezx

[WALLNUTT]

Doesn't babbit have other metal besides tin in it?

[turtlezx]

tin and lead not sure on other metals

[bangerjim]

There at least 15 types of “babbit” metal! All are different. Each may/will give different weights.

Just cast away and do not worry about the weights if you want to use an “unknown” alloy. Or stick to the standard mixes we use and what the mold was ACTUALLY cut for.

As far as those different ratios you list........try casting ‘em and see what they weigh. I have not seen any reference material that details data like that.

[fredj338]

I have never added more tin than 20-1 lead-tin mix for LHP. I almost never add tin to my range scrap when casting for plinking bullets to 1200fps or so. Yes adding tin will make the bullet lighter, but the 1-2% that most add for good bullet fil-out, it is only dropping wt a very small amount. maybe 1-2% lighter?

[Grmps]

Banger is right, go to rotometals site (add at top of the forum) and look at Babbit.
In short, the higher the lead content, the heavier the bullet.
http://www.lasc.us/ has a section that explains differing sizes and weight from different alloys.

[JonB_in_Glencoe]

I can't answer your question on what weight a boolit will be with different solders.
BUT, if you have a Sn/Pb alloy of unknown percentages and have a good thermometer, you can guesstimate the alloy by finding the melt/freeze temps. Wikipedia:solder has a list of numerous alloys and their melt temp.