This is Fiocchi's top hunting ammunition. They use the best bullets in the business from SST, V Max, Interlock, Sierra (Gameking) and Barnes (Tipped Triple Shock) in the Extrema Line. Precision brass cases are combined with the best powders and reliable primers to make the most of these world-renown bullets. The Extrema Rifle Hunting Loads are tested and qualified daily to ensure you receive the best they can deliver in extreme heat or cold hunting conditions.