The Weatherby H653140IL Select Plus 6.5-300 Weatherby Magnum 140gr InterLock ammunition offers long-range power and controlled expansion for hunters and precision shooters who demand consistent terminal performance, and as a Weatherby Select Plus round it belongs to a lineup known for high-velocity, flat-shooting cartridges built around the 6.5-300 Weatherby Magnum platform. With a 140 grain InterLock bullet traveling at approximately 3,475 fps and generating roughly 3,405 ft-lbs of muzzle energy, this load delivers the sectional density and ballistic coefficient needed for extended-range accuracy on big game, while the brass casing and reliable ignition contribute to consistent pressures and feeding in bolt-action rifles. If you're dialing in a long-range hunting load for elk, moose, or other large North American game or testing the limits of the 6.5-300 Weatherby Magnum on the range, this cartridge balances trajectory and terminal performance to keep follow-up shots predictable and recoverable. For shooters comparing Weatherby ammo, 140gr InterLock rounds provide a middle-ground weight choice that pairs well with heavy-twist barrels to stabilize 6.5mm projectiles at magnum velocities.