Federal Premium 280 Ackley Improved 168gr Berger Hybrid Rifle Ammo - 20 Rounds - Blend the profile of a low-drag match bullet with a traditional hunting projectile design and you're ready to take on almost anything that walks on four legs. Berger Hybrid Hunter bullet weights have been fine-tuned to provide exceptional accuracy through any rifle. Ballistic coefficients exceed those of comparable designs thanks to a hybrid nose design that combines tangent and secant ogive features. Berger Hybrid Hunter Centerfire Rifle Rounds Made In The USA Browse all 280 Ackley Improved Ammo.