High Performance Hornady Bullets-Millions of successful hunts have proven the accuracy and deadly knockdown power of the famous Hornady InterLock, SST and InterBond bullets we load into every Hornady Custom rifle cartridge. Powder-Each cartridge is loaded to ensure optimal pressure, velocity and consistency, from lot to lot. Highest Quality Brass-Much of the brass is made by Hornady, the rest carefully selected for reliable feeding, corrosion resistance, hardness and the ability to withstand maximum chamber pressure. Primers-Like the powder, each primer is carefully matched to individual loads, and specially selected for their ability to quickly, completely and reliably ignite the powder charge.