Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
The Browning Silver Series 300 Winchester Magnum ammo pairs a 180-grain jacketed soft point with modern plating techniques to deliver controlled expansion and deep penetration on elk, moose, and bear-class game. At 2960fps and 3501ft-lbs from the muzzle, this load sits in the heavy-for-caliber range—favoring retained energy over flat trajectory—making it a go-to choice for timber hunts and shots inside 400 yards where terminal performance outweighs ultra-long-range ballistics. The 300 Winchester Magnum cartridge has been a benchmark magnum since 1963, bridging short-action convenience with true long-action performance, and Browning’s Silver Series rounds honor that legacy with precision-plated bullets and non-corrosive boxer primers in reloadable brass cases. Browning manufactures this ammunition in the United States, maintaining the quality control expected from a brand with over a century in the hunting industry.
Built for the Box
Each 180-grain jacketed soft point is plated to resist core separation during expansion. The jacket opens predictably on impact, mushrooming to increase wound channel diameter while the soft lead core transfers energy into tissue. Brass cases are boxer-primed, non-corrosive, and reloadable—letting handloaders tailor follow-up batches to their rifle’s chamber and barrel. The G1 ballistic coefficient of 0.382 indicates moderate aerodynamic efficiency; this is not a slippery VLD but a heavy, blunt-nosed projectile optimized for controlled expansion at hunting velocities. At 100 yards, expect approximately 2760fps and 3040ft-lbs; at 200 yards, roughly 2570fps and 2640ft-lbs. The supersonic velocity rating holds well past 500 yards, though most ethical big-game shots occur much closer where this load’s energy advantage shines.
Specs at a Glance
| Spec | Value |
|---|---|
| Caliber | 300 Winchester Magnum |
| Bullet Weight | 180 Grains |
| Bullet Type | Jacketed Soft Point |
| Muzzle Velocity | 2960 fps |
| Muzzle Energy | 3501 ft-lbs |
| Rounds per Box | 20 |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| G1 Ballistic Coefficient | 0.382 |
| Intended Use | Hunting |
| Manufacturer | Browning (USA) |
This load sits in the proven range for elk, moose, and large-bodied deer where shot angles may be steep and bone contact likely. Compare ballistics and terminal performance across the broader 300 Win Mag ammo category to match your rifle’s twist rate and intended game.
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.
- Always follow the four rules of firearm safety: treat every firearm as loaded, never point at anything you are not willing to destroy, keep your finger off the trigger until ready to fire, and be certain of your target and what lies beyond it.
- Verify that your state and local jurisdiction permits possession and use of 300 Winchester Magnum ammunition; some localities restrict magnum calibers or impose additional storage requirements.
- This ammunition contains lead. Wash hands thoroughly after handling. California residents: see Proposition 65 warnings regarding lead exposure risks.
Reviews
There are no reviews yet.