GECO ZERO is GECO's latest development. It is characterized by the best precision and outstanding momentary effect and in lead-free! This highly innovative shell has two pewter cores. Supported by the hollow point construction, the pre-fragmented front core disintegrates immediately upon impact with the deer body, releasing much of the energy that quickly nudge the piece into place. The rear tin core forms a stable residual body with the mantle and ensures deep penetration and safe rejects. This makes the GECO ZERO an excellent choice with the best suitability for light to medium game.