Weatherby Select .257 Weatherby Magnum ammunition (part no. H257100IL) loads a 100-grain InterLock for hunters heading out after deer-class game and similarly sized animals. Weatherby built its name on high-velocity magnum cartridges, and its factory ammunition is loaded to the same demanding standard as its rifles. An internal locking ring mechanically bonds the jacket to the core so the bullet mushrooms without separating, even after passing through bone. Brass-cased and 20 to a box, it is built to feed reliably through bolt guns and semi-autos chambered for the cartridge. In our rifle ammunition lineup, this .257 Weatherby Magnum loading is a confirmed, dependable choice worth adding to the cart.

Key Specifications

• The chambering is .257 Weatherby Magnum, one of the flattest-shooting, highest-velocity quarter-bore magnums ever built.
• The bullet weighs 100 grains, setting the balance of velocity and downrange energy this load is tuned for.
• The bullet is an InterLock, the projectile Weatherby chose to load behind .257 Weatherby Magnum.
• An internal locking ring mechanically bonds the jacket to the core so the bullet mushrooms without separating, even after passing through bone.
• Cases are Brass, holding pressure reliably and staying reloadable for handloaders.
• Each box holds 20 rounds, enough to confirm zero and still have rounds on hand.
• A case ships 10 boxes (200 rounds total), ideal for stocking up or buying once for the season.
• At about $3.08 per round, the price reflects the bullet construction loaded into this round.

Frequently Asked Questions

What game is the 100-gr InterLock suited for? With .257 Weatherby Magnum behind an InterLock bullet, it is built for deer-class game and similarly sized animals within the cartridge’s normal hunting range.

How is the InterLock different from a standard cup-and-core bullet? An internal locking ring mechanically bonds the jacket to the core so the bullet mushrooms without separating, even after passing through bone.

Buy the Weatherby Select .257 Weatherby Magnum 100 gr InterLock

When the shot has to count, dependable ammunition is what separates a clean hit from a story about the one that got away. This InterLock loading is built to be that dependable round. Order from our Lubbock, Texas gun shop and it ships fast to your door.