How much Copper is too much.

[antelope_sniper]

I've done my share of reloading, but I'm kind of new to bullet casting. For the first time last week I managed to cast decent boolits. So, time for some more lead!
I understand if the alloy includes copper it can cause inclusions. My question is "How much copper is too much?"

[jsizemore]

Where is the copper coming from?

[Tom W.]

If you're getting it from Babbitt, it isn't enough to worry about.

[antelope_sniper]

I've seen some lead advertised with 1/2% copper, some with 1%, and some with as much 4% copper.

[rockrat]

I have cast with 2% copper and boolits came out just fine (hard, but fine)

[GP100man]

It`s hard to melt like antimony so the traces of copper or up to 2-4% will cause no castability problems !

I`m not a metalurigist or anything but microscopically I think the copper will be encapsulated by the lead , unlike antimony which tries to encapsulate the lead !!

Sounds good even if I did`nt sleep at motel 6 !! LOL

Maybe the people who know will chime in !! PLEASE !!!

I know just enuff to get into trouble !!!!

[antelope_sniper]

Thanks guys.
That gives me something to run with.

[mold maker]

I was told somewhere here that Big Truck WWs have up to 2% copper. I have cast with them without problems. They do turn out a little harder, but antimony content may be higher also.