Ammo Specifications
More Information on Sellier & Bellot .375 H&H Magnum Ammo
Sellier & Bellot .375 H&H Magnum 300 Grain Soft Point (SB375B) is a traditional big-game hunting load that combines one of the world’s most established dangerous-game cartridges with a heavy 300-grain soft point projectile. Manufactured by Sellier & Bellot, the Czech ammunition company whose history dates to 1825, this load is intended for hunters who prioritize substantial bullet weight, penetration, and controlled expansion. Packaged in a 10-round box, SB375B follows the classic configuration that has helped make the .375 H&H Magnum a standard for hunting large game around the world.
The cartridge is loaded with a 300-grain Jacketed Soft Point (SP) bullet. This construction consists of a lead core surrounded by a metal jacket, with exposed lead at the nose of the projectile. Upon impact, the exposed soft point is designed to initiate expansion, while the jacket helps regulate deformation and maintain projectile integrity. This balance between expansion and penetration is particularly important with large-game ammunition, where the bullet may need to pass through substantial tissue while retaining enough mass to penetrate effectively.
The 300-grain bullet weight is particularly significant because it is one of the traditional standard weights for the .375 H&H Magnum. Compared with lighter 235- or 250-grain .375-caliber projectiles, a 300-grain bullet emphasizes mass, momentum, and penetration rather than maximum velocity or the flattest possible trajectory. This makes the configuration especially relevant for large-bodied game at the moderate distances commonly associated with traditional .375 H&H hunting.
Introduced by British gunmaker Holland & Holland in 1912, the .375 H&H Magnum has accumulated more than a century of field use. Its belted, tapered case was developed to provide reliable feeding and extraction, including under demanding field conditions. The cartridge ultimately became one of the world’s benchmark medium-bore hunting rounds and remains popular for African safari hunting as well as other applications involving large game.
Sellier & Bellot manufactures SB375B using brass cartridge cases and Boxer primers. The brass cases are reloadable, which can be valuable with a large centerfire cartridge such as the .375 H&H Magnum. Consistent case dimensions, primer ignition, propellant charges, and bullet seating are important for maintaining predictable performance from one cartridge to the next.
The substantial projectile diameter and 300-grain weight also mean shooters should expect considerably greater recoil than with conventional deer-sized hunting cartridges. Rifles chambered in .375 H&H Magnum are consequently designed around the cartridge’s dimensions, recoil, and large-game purpose.
Packaged 10 rounds per box, Sellier & Bellot SB375B is a straightforward, traditional hunting load rather than a highly specialized modern projectile design. Its combination of the historic .375 H&H Magnum chambering, 300-grain jacketed soft point bullet, lead-core construction, reloadable brass case, and controlled-expansion design makes it representative of the classic heavy-bullet formula that has defined .375 H&H hunting ammunition for generations.
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