The 28 Nosler is a high-performance 7mm centerfire magnum cartridge introduced by Nosler in 2015. Designed for high velocity and long-range big-game hunting, it drives aerodynamic 7mm bullets fast in a cartridge that fits standard-length rifle actions.

The 28 Nosler was introduced by Nosler in 2015 as part of a family of high-performance magnum cartridges designed to deliver maximum velocity from standard-length rifle actions. A "28" in Nosler's naming denotes the 7mm (.284 caliber) bore, and the cartridge pairs that efficient, aerodynamic bullet diameter with large case capacity for serious long-range performance. Ballistically the 28 Nosler drives aerodynamic 7mm bullets at very high velocity, producing a flat trajectory and excellent retained energy and wind resistance at long range — placing it among the higher-performance 7mm magnums for reaching distant big game. That performance comes with heavy recoil and muzzle blast, and the high velocities can accelerate barrel wear, tradeoffs that long-range hunters generally weigh against its reach. It competes in a category of fast 7mm magnums that includes both older belted designs and newer cartridges like the 7mm PRC, and it built a following among hunters and shooters specifically seeking maximum velocity and long-range capability. Today the 28 Nosler is used for long-range big-game hunting and long-range target shooting, with a solid base of rifles and ammunition for its class. Its combination of high velocity and aerodynamic 7mm performance in a standard-length action is why it appeals to shooters pursuing maximum reach.

General information about this caliber — not a recommendation for this specific firearm.