They say they added 3 percent antimony to the lead core. I was very disappointed with original version, and gave the box I had away.
Have since tried them again, and have found 165's to shoot very well in by 308, and 180's in the .30-06 to be just as good. Calibre size hole going in, and golf-ball size exit with high shoulder shots on Fallow deer and Sambar. Haven't caught one yet out of 7 deer. Good price here, too.
Jack