.17 HMR

Reloading data for .17 HMR cartridges and specifications for cases and loads in this caliber.
Product number: CID_17
Load data for caliber ".17 HMR"
You find load data for cartridges in caliber .17 HMR with all common powders and bullets by clicking the "Loads in this caliber" button above.

Cartridge Use & History.17 Hornady Magnum Rimfire, commonly known as the .17 HMR, is a rimfire rifle cartridge developed by the ammunition company Hornady in 2002. It was developed by necking down a .22 Magnum case to take a .17 caliber (4.5 mm) projectile. Commonly loaded with a 17 grain (1.1 g) projectile, it can deliver muzzle velocities in excess of 775 m/s (2,650 ft/s).

Technical Specifications(based on the respective safety standard - see more details in tab "Datasheet" if available)

Caliber: .17 HMR
Cartridge Type: Rimfire
Bullet Diameter: 0.172 '' | 4.37 mm
Datasheet: http://www.cip-bobp.org/homologation/uploads/tdcc/tab-v/17-hmr-en.pdf
Max. Case Length (l3): 1.06'' | 26.9 mm
Max .Cartridge Length / OAL: 1.37'' | 34.7 mm
Maximum Standardized Pressure: 26600 psi | 1834 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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