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.
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 (LR)
Case Capacity
53.7 Grains of Water
Bullet / Barrel Diameter
0.224'' | 5.69 mm
Max. Case Length
1.663'' | 42.24 mm
Max. Cartridge Length
2.36'' | 59.94 mm
Max. Standardized Pressure:
63817 psi | 4400 bar
XXL ID
CID_137
.223 WSSM load data is available with the following bullets:
(most popular first)








