The disclosed ammunition is adapted for flowering into a plurality of sections upon impact with a body or object. The ammunition comprises a cylindrical casing, a charge disposed within the cylindrical casing and cylindrical projectile, defining a first portion within the casing and a second portion extending from the casing. The projectile comprises a projectile body and projectile jacket. The projectile jacket is disposed about at least a portion of the projectile body. The projectile body and/or the projectile jacket each define a leading end and a plurality of radially arrayed score lines formed therein, extending from the leading end. Upon impact, the projectile body and/or the projectile jacket flower into a plurality of radially arrayed sections, the sections being defined by the score lines formed in the projectile body and/or the projectile jacket.