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.300 Lapua Mag. Load Data

Alternative names: .300 Lapua Magnum, 7.62×70mm

These are the primary alternative names for the .300 Lapua Mag.

Our load data for caliber .300 Lapua Mag. covers 577 bullets from 40 manufacturers and a total of 36351 load recipes.

The .300 Lapua Magnum, while not as universally recognized as some of its competitors, carries a unique and interesting backstory in the world of long-range shooting. Developed in Finland during the late 1980s and early 1990s, the cartridge was engineered by Nammo Lapua Oy, a company renowned for precision ammunition. Its development was driven by the emerging need for a high-velocity, long-range round that could offer superior ballistic performance for both competitive shooters and military applications. The .300 Lapua Magnum draws some design characteristics from its larger sibling, the .338 Lapua Magnum, which had already set a high standard for sniper and long-range cartridges. Unlike the .338, the .300 Lapua Magnum focuses on firing smaller diameter bullets at faster velocities, carving itself a niche amongst enthusiasts who wanted extended-range capabilities without the punishment of excessive recoil.

The .300 Lapua Magnum serves a variety of applications, making it particularly interesting to experienced reloaders and long-range shooting enthusiasts. Its primary domain is precision target shooting and long-range competition, where the flat trajectory and excellent ballistic coefficients of its typical projectiles shine. High-velocity rounds help minimize wind drift and bullet drop over extreme distances, offering shooters a precision edge. Additionally, while not as common as some similar calibers, the .300 Lapua Magnum has also been employed in military and tactical roles, providing designated marksmen and snipers a high-energy option for engaging targets beyond 1,000 yards. Due to its performance characteristics, it remains a sought-after choice among those who demand the very best in accuracy and consistency from their reloading practices.

When it comes to hunting applications, the .300 Lapua Magnum is remarkably versatile, capable of ethically taking down a wide range of game species. Its high projectile energy and reliable expansion make it suitable for medium to large game, including deer, elk, moose, and potentially even larger or tougher species in the right hands. However, due to its significant power, many reloaders prefer to save it for situations where shots are likely to be taken at extended distances and where precision is paramount. That said, its popularity as a dedicated hunting round is somewhat limited compared to the more mainstream .300 Winchester Magnum or .300 Weatherby Magnum, largely due to its niche availability and specialized rifle requirements.

For reloaders, the .300 Lapua Magnum offers an intriguing array of bullet weights and characteristics. Typical bullet weights range from 150 grains up to 220 grains, with the 180- to 200-grain bullets being particularly popular for their balance of speed and ballistic efficiency. The cartridge is designed to manage extremely high pressures, often achieving muzzle velocities in excess of 3,000 feet per second with suitable projectile weights. Its case capacity is generous, allowing for the use of slow-burning powders that contribute to its remarkable downrange performance. The .300 Lapua Magnum is also known for its thick, robust case walls and precision manufacturing, qualities highly prized by reloaders seeking case longevity and consistency. While factory-loaded ammunition may be hard to find, for dedicated handloaders, the caliber presents an excellent platform to experiment with custom loads that maximize both accuracy and performance.

Suitable Powders

Bullet Weight (gr) ->
0-50
50-75
75-100
100-150
150-200
200-300
>300

👍 ... suitable powder 

👍👍 ... suitable AND popular powder among our reloading community  (clasification might evolve as more community members share their loads )

Caliber Specifications

Standard / Datasheet

Primer Size

Large Rifle Magnum (LRM)

Max. Case Length

100 Grains of Water

Bullet / Barrel Diameter

0.308'' | 7.82 mm

Max. Case Length

2.724'' | 69.19 mm

Max. Cartridge Length 

3.68'' | 93.47 mm

Max. Standardized Pressure:

60916 psi | 4200 bar

XXL ID

CID_363

.300 Lapua Mag. load data is available with the following bullets:

(most popular first)

Filter by Bullet Weight (Grains)

Weight vs. Velocity - Suitable Bullets for this Caliber

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Barrel Length  Variation vs. Velocity - by Bullet Weight

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