The Weatherby Select .240 Weatherby Magnum 100gr Hornady InterLock ammunition (Weatherby part no. H240100IL) loads a time-tested Hornady bullet into the world’s fastest commercially available 6mm cartridge. Weatherby describes the .240 as a belted .30-06 parent case necked down to 6mm with a double radius improved shoulder. The 100-grain InterLock leaves the muzzle at 3275 fps, delivering a flat trajectory at distance. Each box holds 20 rounds.

Key Specifications

• Caliber is .240 Weatherby Magnum, a 6mm cartridge with a .243-inch bullet diameter.
• The bullet is a 100-grain Hornady InterLock, which has an exposed lead tip for controlled expansion.
• Ballistic coefficient (G1) is .405, a figure that reflects the secant ogive design’s efficiency in flight.
• Muzzle velocity is 3275 fps, the speed Weatherby lists for this bullet weight.
• Muzzle energy is 2381 foot-pounds, the figure Weatherby lists at the muzzle.
• Velocity at 300 yards is 2569 fps, from Weatherby’s published ballistics table.
• Box quantity is 20 rounds, the usual count for premium hunting ammunition.

Frequently Asked Questions

What is the InterLock bullet? The InterLock has an exposed lead tip for controlled expansion, a secant ogive design, and a raised ring inside the jacket that locks the core and jacket together to retain mass and energy.

What rifles use the .240 Weatherby Magnum? It is a belted 6mm magnum cartridge, so it needs a rifle chambered specifically for .240 Weatherby Magnum.

How does the load perform at distance? Weatherby lists 3026 fps at 100 yards, 2792 fps at 200 yards and 2569 fps at 300 yards, with energy of 2034, 1731 and 1466 foot-pounds at those distances.

Buy the Weatherby Select .240 Weatherby Magnum 100gr Hornady InterLock Rifle Ammunition, 20-Round Box

This is premium magnum ammunition built for the flattest shooting a 6mm can offer. Order from Weatherby’s selection of rifle ammunition at our Lubbock, Texas gun shop for fast, insured shipping.