Weatherby Select 340 Wby Mag 250gr Interlock 20-Rd

The Weatherby Select factory load delivers the proven performance of the .340 Weatherby Magnum in a hunting-ready configuration built around the Hornady Interlock bullet. Introduced in 1963, the .340 Wby Mag remains one of the flattest-shooting, hardest-hitting big-game cartridges available, and this Select load channels that ballistic potential into a single, dependable 20-round box.

Loaded with a 250 gr Hornady Interlock bullet, this round leaves the muzzle at 2685 fps and produces 4002 ft lbs of energy, putting it firmly in elk, moose, and African plains-game territory. The Interlock bullet features a lead core mechanically locked to a copper jacket, with a soft-point tip that initiates reliable expansion on impact while the ringed shank retains weight for straight-line penetration through heavy muscle and bone.

Each box contains 20 rounds, with 10 boxes per case, and the load is built to Weatherby's tight tolerances so it feeds smoothly in Weatherby Mark V and Vanguard rifles (and any other properly chambered .340 Wby Mag rifle). If you are looking for a factory hunting round that combines Weatherby's signature velocity with the proven terminal performance of a Hornady Interlock, this Select load is a straightforward choice for serious big-game hunters.