.223 WSSM

Reloading data for .223 WSSM cartridges and specifications for cases and loads in this caliber.
Product number: CID_137
Load data for caliber ".223 WSSM"
The .223 WSSM (Winchester Super Short Magnum) is a high performance rifle cartridge developed by Winchester in 2005. This round has significantly more power than the traditional .223 Remington, making it an excellent choice for hunters and target shooters looking for a bit more punch. The increased velocity of this round also makes it suitable for longer distance shooting, giving it extra potential as a varmint or predator round.

The .223 WSSM is available in bolt and auto-loading actions, so you'll have plenty of options when choosing your rifle. It can also be used for deer hunting if the correct bullet type is chosen and the appropriate range limitations are observed. Furthermore, many ammunition manufacturers offer specialty rounds such as frangible and training cartridges that are specifically designed for this caliber.

You find .223 WSSM 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: .223 WSSM
Cartridge Type: Rimless
Bullet Diameter: 0.224 '' | 5.69 mm
Primer Size: Large Rifle (LR)
Max. Case Length (l3):1.66'' | 42.24 mm
Max .Cartridge Length / OAL:2.36'' | 59.94 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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