.300 Weath. Mag.

Reloading data for .300 Weath. Mag. cartridges and specifications for cases and loads in this caliber.
Product number: CID_379
Load data for caliber ".300 Weath. Mag."
The .300 Weatherby Magnum (Weath. Mag) is a powerful round developed by Roy Weatherby in the late 1940s. This cartridge is known for its impressive energy and velocity, making it suitable for taking down even the most formidable game animals from long distances.

The .300 Weath. Mag also boasts excellent accuracy potential thanks to its advanced design and high-quality components. It's a great ethical choice for hunters as it provides enough knock-down power to bring down large game humanely, even at extended ranges. Additionally, this caliber is increasingly popular among precision target shooters due its flat trajectories and consistent performance in all weather conditions.

You find .300 Weath. Mag. with all common powders and bullets by clicking the 'Loads in this caliber' button above.

Technical Specifications (based on the respective safety standard - see more details in tab 'Datasheet' if available)

Caliber: .300 Weath. Mag.
Cartridge Type: Magnum
Bullet Diameter: 0.308 '' | 7.82 mm
Primer Size: Large Rifle Magnum (LRM)
Max. Case Length (l3):2.82'' | 71.73 mm
Max .Cartridge Length / OAL:3.56'' | 90.42 mm
Maximum Standardized Pressure:63817.6 psi | 4400 bar
The Commission internationale permanente pour l'épreuve des armes à feu portatives ("Permanent International Commission for the Proof of Small Arms" – commonly abbreviated as C.I.P.) is an international organisation which sets standards for safety testing of firearms. (The word portatives ("portable") in the name refers to the fact the C.I.P. tests small arms almost exclusively; it is ordinarily omitted from the English translation of the name.) As of 2015, its members are the national governments of 14 countries, of which 11 are European Union member states. The C.I.P. safeguards that all firearms and ammunition sold to civilian purchasers in member states are safe for the users.
To achieve this, all such firearms are first proof tested at C.I.P. accredited Proof Houses. The same applies for cartridges; at regular intervals, cartridges are tested against the C.I.P. pressure specifications at the ammunition manufacturing plants and at C.I.P. accredited Proof Houses.

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