Hornady Custom, 338 Lapua Magnum, 240 Grain, CX, 20 Round Box 82318 Millions of successful hunts have proven the accuracy and deadly effect of the famous Hornady InterLock, SST, InterBond and CX bullets they load into Hornady Custom rifle ammunition. Every round of Hornady Custom ammunition is hand inspected before packaging to ensure the highest levels of quality control. At Hornady, they manufacture Custom ammunition to give shooters and hunters the advantage of handloaded accuracy in a factory load.