Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
The Nosler Trophy Grade 300 WSM AccuBond ammo delivers repeatable terminal performance for medium to large game hunters who need bullets that penetrate deep and expand reliably. Loaded with a 180-grain AccuBond bonded polymer tip projectile, this cartridge launches at 2950 feet per second and carries 3478 foot-pounds of energy at the muzzle. The 300 Winchester Short Magnum (WSM) chambering fits short-action rifles while delivering ballistics that rival traditional magnum cartridges in longer platforms. For elk, mule deer, and black bear hunters working at extended ranges, this load bridges the gap between standard .30-caliber cartridges and heavyweight magnums.
Built for the Box
Nosler manufactures Trophy Grade ammunition to match-grade tolerances — each round hand-inspected during packaging. The AccuBond bullet uses a proprietary bonding process that fuses the copper-alloy jacket to the lead-alloy core, eliminating internal voids that cause inconsistent expansion. The white polymer tip protects the bullet point during feeding and magazine storage while initiating expansion on impact. At hunting velocities, this bonded construction retains 60-70% of original bullet weight, driving through heavy shoulder bones without fragmenting. The G1 ballistic coefficient of 0.507 keeps velocity high and wind drift manageable past 400 yards. Sectional density measures 0.271, supporting deep penetration through muscle and organ tissue.
The Numbers
| Spec | Value |
|---|---|
| Caliber | 300 Winchester Short Magnum (WSM) |
| Bullet weight | 180 grains |
| Bullet type | Nosler AccuBond bonded polymer tip |
| Muzzle velocity | 2950 fps |
| Muzzle energy | 3478 ft-lbs |
| G1 ballistic coefficient | 0.507 |
| Sectional density | 0.271 |
| Rounds per box | 20 |
| Case | Brass (Nosler Custom) |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Intended use | Hunting |
| Manufacturer | Nosler |
Nosler Custom brass cases run straight and uniform — built for reloading after the first firing. Boxer primers allow standard decapping. For hunters who shoot 300 WSM ammo in short-action rifles, this load balances case capacity with bore diameter to deliver magnum energy without the length penalty of belted cartridges.
Safe Handling & Compliance
Federal law requires purchasers to be at least 18 years old for rifle and shotgun ammunition, and at least 21 for handgun ammunition. Ammunition cannot be shipped to certain states, counties, and cities — review our ammunition shipping restrictions before ordering. Store ammunition in a cool, dry location away from heat sources and out of reach of unauthorized users.
- Observe the four rules of firearm safety: treat every firearm as loaded, never point at anything you’re not willing to destroy, keep your finger off the trigger until ready to fire, and know your target and what lies beyond it. Learn more at NRA Family.
- Verify state and local laws before ordering — some jurisdictions restrict ammunition purchases or impose background check requirements.
- This ammunition contains lead components. Per California Proposition 65, lead exposure during shooting can cause reproductive harm. Handle with care and wash hands after range sessions.
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