Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
For precision shooters running 338 Lapua Magnum chambered rifles, this Sellier & Bellot load pairs the 250-grain Sierra MatchKing jacketed hollow point with a consistent powder charge that generates 2878 feet per second at the muzzle and 4599 foot-pounds of energy. Sierra MatchKing bullets have won more target competitions than all competing target bullets combined, a record built on lot-to-lot consistency and a boat-tail design that stabilizes predictably across transonic flight. Sellier & Bellot has manufactured cartridge ammunition since 1825 and now operates under Magtech/CBC ownership, maintaining quality control standards that meet military and law enforcement contracts worldwide.
Built for the Box
Each round in this lot uses a boxer primer seated in new-manufacture brass cases, making them suitable for handloaders who require dimensional uniformity and consistent flash-hole diameter. The 250-grain Sierra MatchKing bullet carries a G1 ballistic coefficient of 0.587 and a sectional density of 0.313, both favorable numbers for bucking wind at extended ranges where 338 Lapua platforms are typically employed. Muzzle velocity of 2878 fps from a 26-inch test barrel remains supersonic past 1500 yards under standard atmospheric conditions, allowing you to trace impacts and make corrections within a single shooting session.
Specs at a Glance
| Spec | Value |
|---|---|
| Caliber | 338 Lapua Magnum |
| Bullet weight | 250 grains |
| Bullet type | Jacketed Hollow Point (Sierra MatchKing) |
| Muzzle velocity | 2878 fps |
| Muzzle energy | 4599 ft-lbs |
| Rounds/box | 10 (100 total rounds in 10 boxes) |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| G1 Ballistic Coefficient | 0.587 |
| Sectional Density | 0.313 |
| Intended use | Range & Target |
| Manufacturer | Sellier & Bellot |
This load is optimized for bolt-action precision rifles chambered in 338 Lapua Magnum, a cartridge developed for military sniper applications and now widely adopted in civilian long-range competition. For more options in this caliber class, review our full 338 Lapua ammo selection.
Safe Handling & Compliance
Federal law requires purchasers to be at least 18 years old for rifle 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.
- Follow the four universal rules of firearms safety at all times when handling loaded ammunition.
- Verify current federal, state, and local laws governing ammunition purchase and possession in your jurisdiction before ordering.
- This product contains lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands thoroughly after handling ammunition or spent casings.
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