The 6.5-300 Weatherby Magnum is Weatherby's most modern proprietary cartridge, pushing a 127-grain bullet at 3,531 fps — the flattest-shooting 6.5mm cartridge in production. In the Ultra Lightweight platform it creates an extreme long-range hunting rifle that weighs less than 6 pounds. A 26-inch fluted barrel is required to achieve catalog velocities from this overbore cartridge. Type: Rifle Action: Bolt-Action Caliber: 6.5-300 Wby Mag Capacity: 3 Year introduced: 2016, USA Weight: 5.75 oz Overall length: 46" Status: Active Intended use: Hunting, Long-Range Shooting