The .416 Weatherby Magnum was introduced in 1989 to out perform the earlier .416 Rigby and the upstart .416 Remington Magnum. This it does, by a considerable margin, in true Weatherby fashion, using a belted case based on the .416 Rigby with a Weatherby double radius shoulder that is loaded to much higher pressure than the .416 Rigby.

Weatherby offers a 350 grain Barnes X-Bullet at 2,850 fps and 6,312 ft. lbs. of ME, a 400 grain Swift A-Frame bullet at 2,650 fps and 6,237 ft. lbs. of energy, and two 400 grain RN bullets at 2,700 fps with 6,474 ft. lbs. of ME, a soft point and a solid. The figures for the 400 grain solid bullet at 100 yards are 2,411 fps and 5,162 ft. lbs.

The A-Square reloading manual Any Shot You Want suggests, among other loads, 116.0 grains of IMR 7828 powder for a MV of 2632 fps, and 120.0 grains of IMR 7828 for a MV of 2742 fps, both with a 400 grain A-Square bullet. These loads were assembled using A-Square brass and CCI-250 primers, and were tested in a 26" barrel. The MAP of the maximum load was 61,000 psi.

Note: A complete article about the .416 Weatherby Magnum can be found on the Rifle Cartridge Page.