I have lots of lead wheel weights. I also of like 100 lbs of 63/37 solder trying to come up with a mix but the castboolits calculator spreadsheet that I down loaded seems to have an error in it. Anyone that uses it if you set the 63/37 solder to one pound without having anything else checked at the bottom where it tells you the calculated hardness it comes up with 26.9 as the hardness but the hardness is actually 17. So then when you add wheel weights to the spread sheet the calculated hardness is off by like 10 bhn???
So when i set it up as 1 lb of 63/37 to 5 lbs of wheel weights it gives me estimated hardness of 14.1-- so I am not sure of this mix is giving me correct estimated hardness....
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