This round was built around the .30 Caliber 175 Grain Berger OTM Tactical Rifle Bullet because it is the highest performing Rifle Bullet available for standard magazine fed 308 service rifles. Berger combined an optimized tangent ogive profile with the ideal weight for standard tactical applications, then they load these Rifle Bullets to both SAAMI and CIP specifications and through rigorous testing prove them to be transonic stable in flight, which makes this a versatile overall performer for the common 308 Winchester.