From Forney site: “97% Tin / 2.75% Copper / 0.25% Silver. There are a few that look like they were re-wound, I did weigh these, and pulled the ones that weighed less than 4.2 oz (solder plus spool).

Jornalista
From Forney site: “97% Tin / 2.75% Copper / 0.25% Silver. There are a few that look like they were re-wound, I did weigh these, and pulled the ones that weighed less than 4.2 oz (solder plus spool).