Berger Flat Base Target Rifle Bullets are often used bycompetitive benchrest shooters who seek the highest accuracy possible. FlatBase Target Rifle Bullets are often used out to mid-range distances of 300yards or more where a boat tail is not applicable. Berger Flat Base TargetRifle Bullets are match-grade quality and utilize a tangent ogive Rifle Bulletdesign which makes these very easy to load, tune and shoot. Highly accurate,the Flat Base Target uses J4 Precision Rifle Bullet jackets for construction.J4 Precision Jackets have a Total Indicated Runout (TIR) of +/- .0001 andextremely tight manufacturing tolerances.