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The 7mm Weatherby Magnum has been pushing boundaries since the mid-1940s, and this Weatherby factory load combines that heritage with modern Hammer Custom bullet technology. At 3,275 fps, you're getting real magnum performance straight from the box without the handloading commitment. The cartridge design gives it a ballistic edge over more common magnums thanks to its case geometry and generous powder capacity.
Hammer Custom projectiles are machined from solid copper on CNC lathes, then carefully measured to exact specifications. Each bullet is weighed and micrometer checked during production, which means consistency from round to round. The 146-grain weight lands in that sweet spot for the 7mm WBY—delivering excellent velocity while maintaining inherent accuracy. The hollow point design initiates expansion immediately on impact and sheds petals in a controlled manner, leaving the core intact for deep penetration and creating a wide wound channel.
With factory velocity at 3,275 fps, this round maintains excellent energy downrange and delivers a flat trajectory that makes long-distance shots more manageable. The ballistic coefficient of 0.419 helps it hold velocity in wind and drop less than heavier or older bullet designs. Mid-range energy retention is where magnum cartridges shine, and this load performs the way the 7mm Weatherby was designed to perform.
This ammunition is built for hunters and long-range shooters who want factory reliability without compromise. The Weatherby factory load paired with Hammer bullets handles medium to large game effectively and shoots flat enough that elevation changes at extended ranges become less punishing. It's the kind of ammo that lets you focus on your shooting instead of worrying about consistency.
This ammunition is designed for rifles chambered in 7mm Weatherby Magnum, which are typically Weatherby Mark V rifles or other quality firearms specifically manufactured for this cartridge. Always verify your rifle's chamber before purchasing ammunition. Do not attempt to fire this cartridge in 7mm Remington Magnum or other 7mm rifles unless specifically marked for the Weatherby chamber.
The 7mm Weatherby delivers higher muzzle velocities than the 7mm Remington Magnum, resulting in a flatter trajectory and more energy at extended ranges. The Weatherby was developed nearly 20 years before the Remington version and features superior case design for magnum-level performance. Both are effective hunting rounds, but the Weatherby pushes slightly harder when loaded with equivalent bullet weights.
The 7mm Weatherby is an excellent choice for medium to large game including mule deer, elk, and similar-sized animals. The 146-grain Hammer Custom bullet provides reliable expansion and deep penetration, making clean, ethical kills achievable at reasonable hunting distances. It's also competent for long-range shooting applications where a flat trajectory is beneficial.
Hammer Custom bullets are machined from solid copper rather than swaged or cup-and-core construction. This gives them exceptional consistency since each bullet is weighed and micrometer-checked during production. They shed petals on impact while the core stays intact, creating wider wound channels than many traditional designs while maintaining deep penetration.
| UPC | 747115450190 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | M7MM146HCB |
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