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Weatherby built the 6.5-300 Weatherby Magnum by necking down a 300 WBY case to 6.5mm, and the result is one of the flattest, hardest-hitting 6.5mm rounds you can load into a rifle. This 129-grain Hammer Custom load is a lead-free option that drives a solid copper projectile out the muzzle at 3,450 fps, with roughly 3,409 ft-lbs of energy at the barrel. For hunters who want reach and authority in the same cartridge, this is a serious performer.
Hammer bullets are turned on a CNC lathe from a solid copper blend, and each one is weighed and micrometer-measured as it's made. That attention to detail shows up on paper as excellent consistency and on game as predictable results. The hollow point tip starts expanding right on impact and sheds its petals, which radiate outward to create a wider wound channel while the blunt-front shank keeps driving forward for deep, straight-line penetration. It's a design that western and long-range hunters have come to trust for quick, clean kills with minimal meat damage.
With a .510 G1 ballistic coefficient and that big-case velocity behind it, this round stays flat and retains energy well past most hunting distances. Zeroed at 300 yards you're looking at about 2.5 inches high at 100 and roughly 7.4 inches low at 400, so holdover stays manageable in the field. Velocity is still clocking around 2,505 fps at 500 yards, which keeps the Hammer bullet comfortably inside its expansion window for ethical shots on medium and big game.
If you're running a Weatherby chambered in 6.5-300 WBY and want a copper bullet that groups tight and performs reliably on game, this is a strong match. It pairs nicely with hunters chasing mule deer, whitetail, antelope, and elk across open country where the shots can stretch out. Factory-loaded Hammer Custom ammo takes the guesswork out of feeding this fast cartridge something worthy of it.
This load is well suited to medium and big game, including mule deer, whitetail, antelope, and elk. The solid copper Hammer bullet penetrates deep and sheds petals for a wide wound channel, making it a reliable choice for open-country and longer-range hunting. Hunters have had great success with Hammer bullets on everything from deer to larger game.
Yes. The Hammer Custom is a solid copper blend bullet with no lead core, so it's a good pick if you want or need a non-lead option. Copper monolithics like this also tend to retain weight well and minimize meat loss.
This 129-grain Hammer Custom leaves the muzzle at 3,450 fps with about 3,409 ft-lbs of energy. The 6.5-300 WBY is known as one of the fastest 6.5mm cartridges on the market, which is what gives it such a flat trajectory and strong downrange energy retention.
Any rifle chambered specifically in 6.5-300 Weatherby Magnum will run this ammunition. Always confirm your barrel is stamped for 6.5-300 WBY, since this is a dedicated magnum cartridge and not interchangeable with other 6.5mm chamberings.
| UPC | 747115452033 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | M653129HCB |
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