.375 Ruger

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.375 Ruger
Type Rifle
Place of origin USA
Production history
Designer Ruger
Designed 2007
Specifications
Case type Rimless, bottleneck
Bullet diameter .375 in (9.5 mm)
Neck diameter .405 in (10.3 mm)
Shoulder diameter .515 in (13.1 mm)
Base diameter .532 in (13.5 mm)
Rim diameter .532 in (13.5 mm)
Rim thickness .050 in (1.3 mm)
Case length 2.580 in (65.5 mm)
Overall length 3.340 in (84.8 mm)
Primer type Large rifle
Ballistic performance
Bullet weight/type Velocity Energy
225 gr (14.6 g) SP 2,989 ft/s (911 m/s) 4,465 ft·lbf (6,054 J)
270 gr (17 g) SP 2,698 ft/s (822 m/s) 4,365 ft·lbf (5,918 J)
300 gr (19 g) RN 2,633 ft/s (803 m/s) 4,619 ft·lbf (6,263 J)
Test barrel length: 23
Source: Guns & Ammo [1]

The .375 Ruger is an unbelted, standard-length rifle cartridge designed for large game. Case capacity is slightly greater than the .375 H&H Magnum yielding very similar performance. Hornady published results for the .375 using a 270-grain (17 g) bullet are 2840 ft/s (866 m/s).[1]

Contents

[edit] Overview

The .375 Ruger was designed to be a shorter replacement for the .375 H&H. Being a fatter case, it actually has about 8% more volume giving it a slight potential velocity edge over the older cartridge. The shorter length allows it to be chambered in standard-length actions, reducing cost as well as firearm weight.[1]

[edit] Handloading

Handloading for this cartridge can be somewhat tricky. The high pressure rating means that producing loads near the pressure limit frequently result in a stiff or "sticky" bolt, indicating potential pressure problems. Also the cartridge is reported to be difficult to crimp, which is a concern for dangerous game hunters where crimping is deemed to be essential.[1]

[edit] Specifications

Specifications including cartridge dimensions (see infobox) were taken from "Guns & Ammo" magazine as no reloading manuals currently (2007) cover this cartridge.[1]

  • Case capacity: 101 grains (6.5 g) of water
  • SAAMI maximum average pressure: 63,000 PSI

[edit] See also

[edit] References

  1. ^ a b c d e Wieland, Terry (October 2007). "The .375 Ruger". Guns & Ammo Volume 51 (No. 10): 32–38.