7 x 57 R

Reloading data for 7 x 57 R cartridges and specifications for cases and loads in this caliber.
Product number: CID_1089
Load data for caliber "7 x 57 R"
The 7x57 R is a rimmed sporting cartridge of same dimensions as the 7x57 Mauser, but with a rim for easier extraction in break-action rifles. It was developed by Paul Mauser of the Mauser company in 1892 and is used primarily for hunting.

The 7x57 R has a thin jacket for fast and certain expansion, cutting edge for a clean entrance wound and better blood trails, and nickel-plated bullet surface for reliable feeding. It has a velocity of 2608 f/s and energy of 2357 ft.-lb at V0. At 100 yards it has a wind drift of 0.55 inches and 2.32 inches at 200 yards.

You find 7 x 57 R 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: 7 x 57 R
Cartridge Type: Rimmed
Bullet Diameter: 0.285 '' | 7.24 mm
Primer Size: Large Rifle (LR)
Max. Case Length (l3):2.24'' | 57 mm
Max .Cartridge Length / OAL:3.07'' | 78 mm
Maximum Standardized Pressure:49313.6 psi | 3400 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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