Walmart had some Oatey lead free solder on close-out for $1 a 1/4 pound roll. It is 95% Tin and 5% Antimony, but it has an acid core. Can I use it in my pot, or will the acid cause problems? Should I pre-melt the solder in something else to remove as much acid as possible, or should I just keep it for soldering copper pipes.
They also had some Oatey Silver lead-free solder, but the back said it had copper, bismuth, silver and tin. It didn't say the percentage of the composition like the other stuff I bought. It was also $1 a 1/4 pound roll. Is that stuff any good to use in bullets?