Sellier & Bellot Rifle 338LapuaMag 300gr Hollow Point Boat Tail 10 Per Box/10 Case SB338LMB

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Sellier & Bellot Rifle Ammunition — .338 Lapua Magnum 300gr HPBT (SB338LMB / UPC 754908512157)

Pack: 10 rounds per box, 10 boxes per case

The Sellier & Bellot (S&B) Rifle load in .338 Lapua Magnum with a 300-grain Hollow Point Boat Tail (HPBT) projectile is a centerfire rifle cartridge intended for firearms chambered in .338 Lapua Mag. This product is identified by model/sku SB338LMB with UPC 754908512157. Packaging is listed as 10 rounds per box and 10 boxes per case, for a total of 100 rounds per case.

Cartridge: .338 Lapua Magnum

The .338 Lapua Magnum cartridge is commonly associated with long-range rifle platforms and is designed to deliver high ballistic performance at extended distances when paired with appropriate rifles, optics, and shooter skill. Because rifles chambered in .338 Lapua Mag vary by barrel length, chamber tolerances, twist rate, and intended role, real-world results can differ across platforms.

Users should confirm their rifle is explicitly chambered for .338 Lapua Magnum and follow manufacturer guidance regarding ammunition specifications, maintenance intervals, and safe operating practices.

Projectile: 300gr Hollow Point Boat Tail (HPBT)

This load uses a 300-grain HPBT bullet. The boat tail design refers to a tapered rear profile that can improve aerodynamic efficiency compared to flat-base designs, while “hollow point” in rifle bullets is often associated with match or precision-style projectile construction (though bullet purpose depends on the manufacturer’s specific design and intended use).

A 300-grain bullet weight is common in .338 Lapua Mag offerings and can influence:

• Recoil impulse and shooter comfort during extended sessions

• External ballistic behavior relative to lighter .338 projectiles

• Barrel twist suitability (rifle-specific)

• Point-of-impact and trajectory characteristics with a given zero

For best results, users often verify load behavior through chronograph testing and dope collection (environment and platform dependent).

Packaging Configuration

• Rounds per box: 10

• Boxes per case: 10

• Total rounds per case: 100

This packaging format is frequently used for higher-powered rifle cartridges and can be useful for lot tracking and controlled training or verification testing.

Compatibility and Use Considerations

For safe and appropriate use:

• Use only in rifles chambered for .338 Lapua Magnum

• Confirm magazine compatibility and overall cartridge length requirements for your platform

• Verify barrel twist rate suitability for 300-grain projectiles (rifle-dependent)

• Follow any suppressor or muzzle device manufacturer guidance if applicable

Users commonly conduct function testing and accuracy confirmation with any new lot, especially for precision-oriented shooting.

Storage and Handling Notes

To support consistent performance and safe handling:

• Store ammunition in a cool, dry location

• Keep in original packaging where possible for lot identification

• Avoid exposure to oils, solvents, and moisture

• Inspect cartridges before use for dents, corrosion, or other damage

Product Identification

• Brand: Sellier & Bellot

• Cartridge: .338 Lapua Magnum

• Bullet Weight: 300 grain

• Bullet Type: Hollow Point Boat Tail (HPBT)

• Rounds per Box: 10

• Boxes per Case: 10

• Model/SKU: SB338LMB

• UPC: 754908512157

The End