This round was built around the .30 Caliber 185 Grain Berger Juggernaut OTM Tactical Rifle Bullet. The Juggernaut lives up to its name by the fact that when it reaches the transonic barrier, the Rifle Bullet ,just keeps going, and remains stable throughout flight, making it very effective at extended ranges. It uses a longer than standard tangent ogive profile to outperform other Rifle Bullets in its weight category. Berger took this Rifle Bullet and load it to both SAAMI and CIP specifications, which makes this a versatile overall performer for the standard factory 308 Winchester rifle.