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Time to make the donuts....

It is a pinhole in the side of the core. Must have been in the wire originally. You would think it would have swaged shut but for some reason it did not.
 
I know that when making cores the pressure is not as much as point up but it seems to me that under the amount of pressure involved in core squirting this would not happen? Maybe the cut core was a bit underweight and also as Al says, a void in the lead wire and therefore not a normal amount of squirt pressure?
 
I obtained some rolls of 3/16" diameter lead wire to make cores. They have been in a moist musty basement for years. The wire is oxidized. How should I go about cleaning it off? I'd be hesitant to use scotchbrite because I don't want any abrasive embedded in the wire and scratch the squirt die. Or simply wipe with a cleaner and rag before cutting? Or not to worry about it?
 

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I obtained some rolls of 3/16" diameter lead wire to make cores. They have been in a moist musty basement for years. The wire is oxidized. How should I go about cleaning it off? I'd be hesitant to use scotchbrite because I don't want any abrasive embedded in the wire and scratch the squirt die. Or simply wipe with a cleaner and rag before cutting? Or not to worry about it?
A strong solution of muriatic acid will remove the white oxidation. I usually let it soak overnight.
 
After reading George's post, I'm thinking the easiest way would be to unroll the wire but leave it in loose coils and put on the top shelf of the dishwasher with normal dish soap and push the start button?

Wayne
 

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