This is .257 Roberts Federal 120gr. +P Vital-Shok Nosler Partition ammo. Fast at 2800fps, and strong with 2089 ft-lbs, Federal Vital-Shok makes a great round. Match that with world-class brass, select powders and legendary primers and you get ammunition you can truly believe in. This ammo comes packed in 20 round boxes, 200 rounds per case.