Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
For elk, mule deer, and antelope hunters working ridgelines where shots stretch past 300 yards, 300 WSM ammo loaded with Barnes VOR-TX components bridges the gap between speed and retained energy. The 300 Winchester Short Magnum cartridge was engineered to match 300 Winchester Magnum ballistics in a shorter, fatter case that cycles through compact actions and delivers flatter trajectories with less powder. Barnes pairs this efficient case design with their Tipped Triple-Shock X (TTSX) bullet — an all-copper monolithic projectile with a polymer tip, four cutting petals, and a reputation for 95%+ weight retention across hundreds of field recoveries.
Built for the Box
Barnes manufactures VOR-TX ammunition at their Utah facility, hand-selecting brass cases and matching each powder charge to a bullet’s bearing surface for consistent ignition and pressure curves. The 150-grain TTSX bullet features a crimped boat-tail and a blue polymer tip that lowers BC drag to 0.42 G1, extending supersonic flight and reducing wind drift at distance. Primer pockets are boxer-primed with non-corrosive compounds, and each case ships reloadable with flash holes uniform to within 0.002 inches. Lead-free construction meets California, Oregon, and federal condor-zone restrictions without requiring hunters to switch loads between jurisdictions.
The Numbers
| Spec | Value |
|---|---|
| Caliber | 300 Winchester Short Magnum (WSM) |
| Bullet weight | 150 grains |
| Bullet type | Barnes Tipped Triple-Shock X (Polymer Tip) |
| Muzzle velocity | 3310 fps |
| Muzzle energy | 3650 ft-lbs |
| G1 Ballistic Coefficient | 0.42 |
| Sectional Density | 0.226 |
| Rounds/box | 20 |
| Case | Brass, reloadable |
| Primer | Boxer |
| Corrosive | No |
| Lead Free | Yes |
| Intended use | Hunting |
| Manufacturer | Barnes |
The TTSX’s four-petal design opens to approximately twice its original diameter upon striking soft tissue, while the solid copper shank plows through shoulder blade and ribcage without fragmenting. Sectional density of 0.226 paired with a boat-tail base keeps the bullet stable through crosswinds common to alpine basins and sage flats. This combination makes the load effective on game from 150-pound whitetails to 700-pound elk at ethical hunting distances. For more lead-free magnum options, review our full selection of 300 WSM ammo.
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.
- Treat every firearm as loaded; muzzle in a safe direction at all times — review the four universal rules before handling firearms or ammunition
- Verify current state and local ammunition regulations before ordering — some jurisdictions restrict lead-free or magnum loads
- This product contains lead and other chemicals known to the State of California to cause cancer, birth defects, or reproductive harm — see Proposition 65 warnings
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