The concept behind Norma’s AFRICAN PH range is different. Based on many generations of experience of reputable African Professional Hunters, this range of cartridges has been developed with the aim to optimize ballistic criteria such as Bullet Momentum, Sectional Density and Deep, Straight-line, Bone-breaking Penetration. These factors in turn, are responsible for KO or Knock Out Value, probably the most important ballistic criterion of all, for stopping a determined charge from one of Africa’s Big Five.