.284 Win.

Reloading data for .284 Win. cartridges and specifications for cases and loads in this caliber.
Product number: CID_293
Load data for caliber ".284 Win."
The .284 Winchester is a popular centerfire rifle cartridge designed in 1982 by Winchester. It is based on the .308 Winchester casing and operates at higher velocities for improved ballistics performance, including flatter trajectories and extended reach.

The .284 Winchester is well-suited for medium to large game hunting due to its excellent blast characteristics and accuracy potential. It features superb knockdown power and relatively mild recoil compared to other magnum cartridges of similar dimensions. It is also capable of extreme accuracy with quality barrels and careful load development used by handloaders.

Ammunition for the .284 Winchester is widely available from most major manufacturers including Remington, Federal, Hornady, Weatherby, Norma, and Speer. Popular offerings range from 130 grains to 175 grains with several bullet shapes offered including flat nose, round nose, soft point, hollow point, and more.
You find .284 Win. 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: .284 Win.
Cartridge Type: Rimless
Bullet Diameter: 0.283 '' | 7.19 mm
Primer Size: Large Rifle (LR)
Max. Case Length (l3):2.17'' | 55.12 mm
Max .Cartridge Length / OAL:2.8'' | 71.12 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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