I haven't cast any bullets for about 15 years but am ready to get going again. I picked up over 1,000 pounds of WW over the weekend and have begun melting them down into clean ingots. I want to add a little tin to the WW and was thinking of adding 1/2 pound of 50/50 solder per 10 pounds of WW. Is that enough extra tin for good casting or should I add 1 pound 50/50 per 10 pounds of WW? I am casting for .44 Special & .44 mag (Keith SWC) and for a .41 mag.