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. Each cartridge is loaded to ensure optimal pressure, velocity and consistency, from lot to lot. 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.