Well I can't find or afford to buy copper bullets, so I started powder coating bullets.
I had being discussing this with Zombie Steve and he wanted to see a picture. It is not to hard, and that coating is tough!!!
FYI these are 45acp 220 grain hollowpointsClick image for larger version.  Name: DSC00309.jpg  Views: 146  Size: 246.2 KB  ID: 22553
I am only practicing on pistol bullets, if I can ever locate a 22 caliber and 30 caliber rifle bullet mold, I will be casting and coating for rifles