Lead bullets WORK. Copper bullets WORK. Lead bullets cheaper. Copper bullets NOT cheaper. Not all guns like copper better than lead. After that, it's really up to you as to what you believe about lead vs. copper. I've read the papers on this issue and the results are the same. Inconclusive!!! I can site specifics, but that just gets boring and I would have to go into statistics, methodologies, sampling averages, confidence intervals, etc. etc. etc. The bottom line is that if the science can't show a correlation between lead ammo and health hazards, whatever conclusions ANYONE wants to make about lead ammo being hazardous are nothing more than politically motivated statements and their personal opinions, NOT FACTS. BTW, I used a copper bullet to knock down one of my Bull Elk in Montana and a lead bullet for my other one. Both Dropped within 40 yards. Good Luck!!