Lapua Naturalis hunting ammunition utilizes copper bullets that retain up to 100% of their original weight for deep penetration, yet expand immediately upon impact due to a special valve at the tip. The result is dramatic shock effects on game. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.

The Naturalis bullet design uses state of the art technology to produce consistent, controlled expansion. The polymer valve design uses hydraulic force to create the optimum mushrooming effect at the widest velocity range on the market. The bullet is designed and manufactured by using pure copper. The material, design and controlled expansion ensures a solid and nearly unbreakable construction.