The Sellier & Bellot .338 Lapua Magnum 300 gr HPBT is a factory-loaded match ammunition cartridge engineered for extreme long-range target competition and precision benchrest disciplines. Loaded with a heavy 300-grain (19.40 g) Hollow Point Boat-Tail projectile, this centerfire rifle round achieves a high ballistic coefficient of G1 0.776 (G7 0.390) and a factory-rated muzzle velocity of 827 m/s (2,713 fps) from a 690 mm test barrel. Each cartridge is constructed with non-corrosive Boxer-primed, reloadable brass cases to support shot-to-shot consistency and low velocity spreads over extended engagement distances.

Key Features

• High Ballistic Efficiency: The 300 gr HPBT bullet profile generates a G1 ballistic coefficient of 0.776 and a G7 of 0.390, minimizing aerodynamic drag and wind drift across ranges from 600 m to beyond 1,500 m.
• Match-Grade Consistency: Loaded to an overall cartridge length of 91.80 mm with strict charge tolerances to maintain uniform muzzle velocities and tight group dispersions.
• Reloadable Components: Built with premium Boxer-primed brass cases, offering reloadability for custom load development.
• Substantial Energy Delivery: Generates 6,648 Joules of muzzle energy ($E_0$) with a sectional density of 0.375 lb/in².

Specifications

• Calibre: .338 Lapua Magnum (8.6 × 70 mm)
• Manufacturer Product Code: V340412 / SBV340412
• Bullet Type: Hollow Point Boat-Tail (HPBT)
• Bullet Weight: 300 grains / 19.40 grams
• Muzzle Velocity ($V_0$): 827 m/s (approx. 2,713 fps)
• Muzzle Energy ($E_0$): 6,648 Joules
• Ballistic Coefficients: G1 = 0.776, G7 = 0.390
• Sectional Density: 0.375 lb/in²
• Overall Cartridge Length (OAL): 91.80 mm
• Single Cartridge Weight: 47.2 g
• Recommended Barrel Twist Rate: 1:11"
• Primer / Case: Boxer, Non-corrosive / Reloadable Brass
• Packaging: 10 rounds per box (Total pack weight approx. 0.52 kg)

Who is the Sellier & Bellot 338 Lapua Mag 300gr HPBT 10 Pack for?

• ELR extreme long range target competitors — requires extended supersonic reach beyond 1,500 m, delivered by this 338 Lapua Magnum match ammunition through its 300-grain bullet weight and high G1 ballistic coefficient of 0.776.
• F-Class and benchrest precision shooters — relies on tight velocity consistency and minimal wind deflection provided by this 338 Lapua Magnum match ammunition, which launches at 827 m/s with optimal projectile stabilization in 1:11" twist rate barrels.

Less suitable for: Rifles with slower 1:12" or 1:14" barrel twist rates, which are better served by lighter 250 gr target loads, or big-game hunting applications requiring controlled terminal expansion, where dedicated expanding projectile hunting cartridges represent the appropriate choice.