Load data for caliber ".25 WSSM"The .25 Winchester Short Magnum (WSSM) is an accurate and powerful centerfire rifle cartridge based on the .300 WSM case necked down to accept .25 caliber (6.5mm) bullets. Developed in 2006 by Winchester, this round offers excellent velocities with minimal recoil - making it perfect for larger framed shooters.
The .25 WSSM is primarily used for hunting big game such as elk and moose at extended ranges due to its flat trajectory and low recoil. It can also be used effectively for shooting smaller game such as deer, antelope and wild boar, making it a great all-around choice for many hunting applications.
You find .25 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)
|Bullet Diameter:||0.257 '' | 6.53 mm|
|Max. Case Length (l3):||1.67'' | 42.42 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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