The Nosler Trophy Grade .300 Weatherby Magnum 180-grain AccuBond Spitzer Soft Point Brass 20-round box is a premier centerfire rifle cartridge engineered specifically for long-range big game hunting, trophy elk, moose, and western big game pursuits. A primary challenge with high-velocity magnum loads is bullet fragmentation or core-jacket separation when impacting dense tissue or heavy bone at close to intermediate ranges. Nosler resolves these high-velocity terminal constraints through its proprietary AccuBond technology, which chemically bonds the lead-alloy core to the copper-alloy jacket to ensure high weight retention, deep penetration, and controlled terminal expansion.
The core technical advantage relies on Nosler's 180-grain AccuBond projectile architecture. Featuring a white polymer tip seated over a tapered copper jacket, the bullet resists nose deformation during magazine recoil and initiates uniform mushrooming upon contact. A proprietary bonding process permanently fuses the lead core to the jacket wall, virtually eliminating core separation and allowing the bullet to retain 60% to 70%+ of its original weight. Combined with a sleek boat-tail base and high ballistic coefficient profile, the AccuBond bullet resists wind drift and maintains downrange energy retention for extended-range effectiveness.
Launching its 180-grain AccuBond projectile at a powerful factory-rated 3,175 FPS muzzle velocity (generating 4,028 ft-lbs of muzzle energy), this Trophy Grade loading delivers exceptionally flat trajectories and crushing knock-down power. Assembled in Nosler's custom-prepped virgin brass cases—featuring deburred flash holes, uniform primer pockets, and strict neck tension—alongside clean-burning, temperature-stable propellants and non-corrosive match Boxer primers, the cartridge guarantees smooth feeding, reliable chamber sealing, and positive extraction in .300 Weatherby Magnum bolt-action rifles.
Key Benefits
- Chemically Bonded AccuBond Core: Fuses the lead core to the copper jacket to prevent separation and preserve 60-70%+ weight retention.
- White Polymer Tip: Prevents tip deformation in the magazine, flattens trajectory, and initiates consistent expansion on impact.
- 4,028 Ft-Lbs Muzzle Energy: High velocity and heavy projectile mass deliver massive hydrostatic shock and deep linear penetration.
- Custom Prepped Nosler Brass: Fully prepped cases ensure uniform internal volume, tight velocity spreads, and smooth bolt cycling.
Technical Specification
- Caliber: .300 Weatherby Magnum (.300 Wby Mag)
- Ballistics: 3,175 FPS Muzzle Velocity | 4,028 Ft-Lbs Muzzle Energy
- Projectile: 180 Grain | Nosler AccuBond | Spitzer Soft Point (SP) | White Polymer Tip | Chemically Bonded Lead Core
- Case/Primer: Precision-Drawn Nosler Custom Prepped Virgin Brass | Clean-Burning Powder | Non-Corrosive Match Boxer Primed
- Logistics: 20 Rounds Per Box | Nosler Trophy Grade Ammunition Series
- Dimensions: Standard .300 Wby Mag Belted Bottleneck Geometry | SKU: 48643
- Application: Long-Range Big Game Hunting, Trophy Elk, Moose, Bear, and Caribou
- Standards: SAAMI Compliant | Nosler Quality Control Benchmarks
If you’re running a .300 Weatherby Magnum and need controlled expansion without sacrificing penetration at magnum velocities, this load resolves common projectile failure issues. Get consistent, field-proven performance backed by precise manufacturing—available now from SMKW, a trusted source for dependable ammunition.
