The Nosler Trophy Grade .338 Winchester Magnum 250-grain AccuBond Spitzer Boat-Tail 20-round box is a heavy-duty centerfire rifle cartridge engineered specifically for big game hunting, elk pursuit, brown bear defense, moose management, and extended-range safari applications. A primary failure point when firing high-velocity magnum cartridges at thick-skinned or heavy-boned game is bullet fragmentation and core-jacket separation, which degrades momentum and prevents the projectile from reaching vital organs. Nosler resolves these terminal performance limitations by pairing custom-prepped brass with its 250-grain AccuBond bullet, delivering structural integrity, high weight retention, and deep, straight-line penetration through heavy shoulder bone and dense muscle.
The primary technical advantage centers on Nosler's 250-grain AccuBond projectile design. Built with a proprietary thermal bonding process that chemically fuses the lead-alloy core to a progressively thickening copper-alloy jacket, the bullet eliminates core-jacket separation even during high-velocity, short-range impacts. The impact-resistant white polymer tip protects the meplat from recoil damage in the magazine, preserves bullet geometry in flight, and triggers rapid, uniform expansion upon contact. Featuring an aerodynamic boat-tail base, the bullet boasts an impressive 0.575 G1 ballistic coefficient to minimize atmospheric drag and resist crosswind deflection downrange.
Launching its heavy 250-grain AccuBond bullet at a factory-rated 2,650 FPS muzzle velocity, this Trophy Grade loading churns out a staggering 3,897 ft-lbs of muzzle energy to hit with immense impact force. Assembled using custom-prepped Nosler virgin brass cases—chamfered, deburred, trued to length, and weight-sorted with centered flash holes—alongside clean-burning propellants and non-corrosive Boxer primers, the cartridge guarantees uniform chamber pressure curves and smooth feeding in magnum bolt-action rifles. It stands as an elite selection for hunting grizzly bear, elk, moose, and large African game.
Key Benefits
- Chemically Bonded AccuBond Core: Thermal bonding fuses the lead core to the copper jacket to eliminate separation and drive deep through bone.
- 0.575 G1 Ballistic Coefficient: High BC boat-tail profile significantly reduces wind drift and preserves downrange velocity and kinetic energy.
- White Polymer Tip: Maintains meplat integrity under heavy recoil and initiates reliable mushrooming expansion upon terminal impact.
- 3,897 Ft-Lbs Muzzle Energy: Delivers massive stopping power, deep tissue penetration, and consistent exit wounds on heavy game.
Technical Specification
- Ballistics: .338 Winchester Magnum | 2,650 FPS Muzzle Velocity | 3,897 Ft-Lbs Muzzle Energy | 0.575 G1 Ballistic Coefficient
- Projectile: 250 Grain | AccuBond Spitzer Boat-Tail (SBT) | Polymer Tip | Chemically Bonded Lead Core | Tapered Copper Jacket
- Case/Primer: Precision Prepped Virgin Nosler Brass | Clean-Burning Powder | Non-Corrosive Boxer Primed
- Logistics: 20 Rounds Per Box | Nosler Trophy Grade Series
- Dimensions: Standard .338 Win Mag Geometry | Belted Magnum Long-Action Compatible | SKU: NOS60086
- Application: Large & Dangerous Game Hunting, Elk, Moose, Brown Bear, Grizzly Bear, and African Safari
- Standards: SAAMI Compliant | Nosler Factory Quality Control Benchmarks
If you’re running a .338 Win Mag platform for elk, moose, or bear and need reliable penetration without jacket failure, this load delivers predictable terminal performance. Get consistent, field-proven results backed by controlled manufacturing standards—available now from SMKW, a trusted source for premium hunting ammunition.
