Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
When you’re chasing sub-MOA groups at 300 meters and beyond, your 300 Winchester Magnum match ammo becomes the foundation of every shot. The Lapua Scenar 185-grain Open Tip Match load delivers the precision bench rest and long-range competitors demand, built on the same exacting standards that set world records in international competition. Lapua is a Finnish ammunition manufacturer known for match-grade centerfire cartridges and rimfire target loads—factory testing of this 300 Win Mag load has produced 10-shot groups averaging 50mm at 300 meters. You’re chambering a load engineered to tight tolerances with components selected for consistency, from the boxer-primed brass case to the proprietary Scenar hollow-point projectile.
Built for the Box
The 185-grain Scenar bullet features a jacketed hollow-point construction optimized for ballistic coefficient rather than terminal expansion. At 2953 fps from a 27-inch test barrel, you’re generating 3585 foot-pounds of muzzle energy—enough to maintain supersonic velocity well past 1,000 yards. The 0.482 G1 ballistic coefficient translates to flatter trajectories and reduced wind drift compared to lighter, lower-BC bullets in the same caliber. Lapua manufactures brass cases to concentricity standards measured in thousandths of an inch, and the non-corrosive boxer primers allow for consistent ignition and case reloadability after firing.
The Numbers
| Spec | Value |
|---|---|
| Caliber | 300 Winchester Magnum |
| Bullet weight | 185 grains |
| Bullet type | Jacketed Hollow Point (Lapua Scenar) |
| Muzzle velocity | 2953 fps |
| Muzzle energy | 3585 ft-lbs |
| G1 ballistic coefficient | 0.482 |
| Test barrel length | 27 inches |
| Rounds/box | 10 |
| Case | Brass |
| Primer | Boxer, non-corrosive |
| Reloadable | Yes |
| Intended use | Range & Target |
| Manufacturer | Lapua |
This load ships in 10-round boxes—purchase multiple boxes to build your competition inventory. For additional long-range options in the same chambering, see our full 300 Win Mag ammo catalog.
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 treat every firearm as if it is loaded and keep the muzzle pointed in a safe direction.
- Verify current state and local ammunition laws before purchasing or transporting across state lines.
- This product contains lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm—wear appropriate PPE during reloading and wash hands after handling.
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