Another vote of appreciation!
It shows me I can cut back on the added tin from 2% to 1%, and that's good news.
Another vote of appreciation!
It shows me I can cut back on the added tin from 2% to 1%, and that's good news.
"The urge to save humanity is almost always a false front for the urge to rule." --H. L. Menchen
Al. designates a weight that is safe to use on aluminum wheels and is either coated or of an alloy that will not corrode the wheel.
I'll give you A for effort, but there is a problem with your testing... The MC/AL/P/AWN/EN/TN etc... are the types of wheels they fit, not the manufacturer. I have a chart on my balancer. I think BADA makes/made most of them, at least the new ones I have.
Good info and Future Sticky?
“A liberal’s paradise would be a place where everybody has guaranteed employment, free comprehensive healthcare, free education, free food, free housing, free clothing, free utilities, and only law enforcement has guns. And believe it or not, such a place does indeed already exist: It's called Prison."
--- Sheriff Joe Arpaio, Maricopa County, Arizona
richbug is correct, the two letter code that you are sorting by is just the indicator for the rim type that the coww fits. There really are only three major producers of wheel weights in the USA, BADA is the largest, Perfect Equipment , and the third escapes me at the moment.
Life is tough......Even tougher when you're stupid
You are the man! Thank you for this wealth of information, I have 200lbs waiting to be smelted.
Using Tapatalk
Thank you for this!!
Your research REALLY puts paid to all the people who say they NEED 92/6/2 Hardball alloy for 45 auto or other low velocity/low pressure loads...when we've been using straight clip WW the whole time which are roughly 97% lead, 2% antimony and 1% tin.
Next time cast bullet makers insist you need Hardball and 16 BHN for your pistol bullets, remember this study when you get leading.
Due to market fluctuations I am no longer buying range scrap jackets.
Sic gorgiamus allos subjectatos nunc
Micro is made by BADA. The third company is PLOMBCO.
I think that you will find that the formula changes very often due to the fact that the requirements for COWW is not very difficult. I would bet that raw materials are always out for bids, and the formula changes slightly each time raw materials are purchased. My guess would be that most COWW are made from recycled materials to begin with, which will constantly move the formula around.
Don't know any of this for a fact, but that is exactly what was done in the factory that I used to work for.
Life is tough......Even tougher when you're stupid
I would also like to nominate this thread for stickie status. This is information we can all use. Especially when it is completed.
Where did you get the analysis done at? What was the cost?
Thx!
(Or do you have access to a XRF gun???!!) jealous!
Last edited by sirsloop; 03-10-2014 at 01:08 PM.
Since one might typically melt a fairly large batch of COWW I am looking forward to finding out a combined average from all the different sets. Figure a hundred pound batch should follow the the composite average pretty well.
I have access to several XrFs at work. The cos is just my time. I am very careful to not test during normal work hours or to get in the way of the off shifts. My boss is fully aware of me using the machines for a "government project" and I intend to not abuse this privilege. Between business being good and some travelling my time is limited. I hope to get another group in this week.
I'm a Happy Clinger.
If your thinking of maybe having your lead assayed this is what I found looking for XrF services. I have yet to use them but will be sending my Lino/Mono/Foundry alloy in for a break down of material make up.
http://www.expressxrfanalysis.com/shipping-contact-info
Ruger RedHawk 357 Mag 44 Mag GP100 Davidson Exclusive 5" Security Six 2 3/4", Speed Six 4"
Smith Wesson 629 PP and 686 PP, 617
Have to commend BNE for the excellent post and information!
If we look at the average of the 4 different makes (how many of us really separate COWWs by make?), since most of us just smelt 'em down as they come out of the bucket, we see the average content of tin is .71% and the average content of antimony is 2.85%. I we add 2% tin as I always suggest we have 2.71% tin and 2.85% antimony. That is almost a perfect balance for the tin and antimony to mix as SbSn. That then mixes perfectly in solution (refer to the "Metallurgy" articles in Lyman's' CBHs).No wonder it turns out to be such an excellent alloy for fillout and hardness that is actually very close to Lyman's #2 alloy in performance.
Thanks again BNE.
Larry Gibson
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |