They also began offering coated bullets three years ago, with coated bullets now comprising more than 50 percent of their sales.“If we had not gone to coating, we’d be out of business,” she said.The Hi-Tek coated bullets are not lubricated, can be used in indoor ranges where lead bullets are not allowed, there is no smoke and the bullets are harder, Jo Ann said.They enclosed a part of the concrete picnic area to accommodate the coating process and bought four large industrial ovens. The coating is mixed in cement mixers.They have a .300 blackout bullet that is coated in black and a 7.65 Russian