? Pewter pills ingot question ?

[kens]

I got a question for those smarter than I.

If you take a boolit mold of say, 300gr size and cast pewter into that, you end up with a pewter boolit pill of approx 180gr, correct?
Assuming tin is about .6 the weight of lead, and pewter assumed to be all tin, correct?
If you add 1 (one) of these pewter pills to each pound of COWW, your end result is a alloy sweetener of 2.6%, correct?
If, COWW are .4% tin to start with, your end alloy is about 3% tin???

Is my assumption of math correct here?

1 of these pewter pills added to each pound of COWW approximates Goodsteel's house alloy?
This also a fine hunting alloy?

[bangerjim]

Don't assume. Download the FREE alloy calculator spreadsheet on here!

All question about "what if I do this-n-that" will be answered completely. Now and in the future.

bangerjim

[jsizemore]

kens, you appear to be right on time.

[runfiverun]

make some and weigh them.
pewter is usually 85-95% tin depending on it's age and whether its plated or not.
airc Tims house alloy is 2% and 2% or 2.5/2.5 sumthin like that.

[kens]

kens, you appear to be right on time.


If so, then we need to find a Lee 6-cavity mold of 300 gr. ?? This is to make pewter sweetener pills for COWW's??

[imashooter2]

(180 / 7,180) * 100% = ~2.5%

You have to include the added weight in the divisor.

[jsizemore]

I don't know about you, but I figure how much lead I got and add 2% pewter. 10lbs=160 ounces of lead so I need 3.2 ounces of pewter. I fish in my pewter stash and pull out enough ingots to total 3.2 ounces. Simple.

[imashooter2]

3.4 / 163.4 = .0208 :)

[kens]

3.4 / 163.4 = .0208 :)

What is that meaning?
Am I on to a balanced alloy as I stated above???

[jsizemore]

He's having a bj attack.

[imashooter2]

What is that meaning?
Am I on to a balanced alloy as I stated above???

It means to do the math right, you have to divide the whole quantity into the amount added. If you don't, your percentage will be light. So in jsizemore's example you would need 3.4 ounces to get 2% addition in ten pounds of lead. A small difference to be sure, but a difference none the less.


He's having a bj attack.

Maybe a little. :)

[RogerDat]

Casting pewter into "pills" using a boolit mold is a good idea in direct proportion to the likely hood of the caster forgetting their composition and just loading all those pewter pills into some brass. Hmmm recoil seems especially mild with these loads. Wonder if the powder measure is off? ;-)

I have developed a healthy respect for my own ability to make some pretty funny mistakes, that would only be one more on the list.

[lightman]

I think casting tin into large bullets would be a good idea. My choice is a 500 grain .45 mold. Using a small mold for ingots and weighing them is another idea.

[Yodogsandman]

How about using a mold that you have no gun for and don't plan on either. Say a 43 cal mold.

[kens]

I proposed a 300gr mold to make 1 pill per pound of lead

[mold maker]

A fish sinker mould works for me, especially egg sinker shape.
Most moulds cast several sizes which makes adding to alloy, in exact amounts easy.
The assorted sizes stops confusion as to what it is.