8.5 mm Messner Magnum

Reloading data for 8.5 mm Messner Magnum cartridges and specifications for cases and loads in this caliber.
Product number: CID_1203
Load data for caliber "8.5 mm Messner Magnum"
The 8.5 mm Messner Magnum is a powerful and versatile cartridge designed by Steyr Mannlicher, an Austrian ammunition manufacturer. It was developed as an improvement of the 8x57mm Mauser, offering superior long-range accuracy and energy retention at distances of up to 2,000 yards.

The 8.5mm Messner Magnum makes for a great long-range target shooting round due to its flat trajectory and minimal bullet drop. Its increased velocity and superior energy retention make it an ideal choice for hunting applications as well, able to take out smaller game from further away with precision accuracy.

Its large case size allows it to generate higher velocities while minimizing recoil, making it a great choice for shooters who want maximum performance without sacrificing accuracy or comfort.

You find 8.5 mm Messner Magnum 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: 8.5 mm Messner Magnum
Cartridge Type: Rimless
Bullet Diameter: 0.338 '' | 8.59 mm
Primer Size: Large Rifle Magnum (LRM)
Max. Case Length (l3):2.51'' | 63.7 mm
Max .Cartridge Length / OAL:3.46'' | 88.01 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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