.375 Ruger

Technical Specifications

 

Country of Origin United States
Diameter – Bore .368” (9,35mm)
Diameter – Groove .376” (9,53mm)
Introduced 2007
Pressure – Max Average 65,000 psi (448 MPa)
Regulators SAAMI & CIP
Groove Details 6 x .115” (2,92mm)
Shellholder – RCBS 4
Twist – Proof Barrel 1:12” (305mm)
* Read all about this cartridge in the book African Dangerous Game Cartridges by Pierre van der Walt
Cartridge Essentials

 

Action Size Recommended Miniature length & .223 bolt face
Barrel Life 4,000 – 5,000 rounds
Case – Body Taper .48°
Case – Neck Length .305” (7,75mm) = 81.3%
Case – Trim Length 2.572” (65,33mm)
Parent Case .338 Ruger Compact Magnum
Relative Capacity 98.0 gr water (6,363 cc)
Shoulder Angle 30°
Typical Factory Load Guidelines for
Brand Name Bullet Weight Bullet Description Velocity Fps Energy Ft/Lb Trauma Potential 100% Expansion
Hornady 300-gr DGS Superformance 2,660 fps 4,715 ft/lb 99.0 no expansion
Hornady 300-gr DGX Superformance 2,660 fps 4,715 ft/lb 49.5 expand less penetration
Hornady 270-gr SP-RP Superformance 2,840 fps 4,837 ft/lb 50.8 expand less penetration
Optimum Bullet Optimum Application Bands (300-gr averaged)
Band Velocity Parameters Start End
Red-Band ( > 2,600 fps) 0 yds ± 20 yds
Green-Band ( ≤ 2,600 fps – ≥ 2,200 fps) ± 20 yds ± 150 yds
Amber-Band ( ≤ 2,200 fps – ≥ 2,000 fps) ± 150 yds ± 225 yds
Bullet Recommendations for Africa
Big game Fifth generation, sixth generation and seventh generation bullets
* Read all about this cartridge in the book African Dangerous Game Cartridges by Pierre van der Walt
Game Weight Recommendation
≤ 3,300 lb ( ≤ 1,500 kg)
Most Suitable African (assuming legality)
Big Game Buffalo, Lord Derby eland, giraffe, hippo, lion, rhino. It is suitable for elephant but there are better elephant
* Read all about these animals in the book Game Animals of the World by Chris & Tilde Stuart
Optics Guidelines
Eye Relief Semi critical >3.75” (95mm)
Exit Pupil ≥ 5mm
Magnification: Red-Band = 1x
Magnification: Green-Band ≥ 1x – ≤ 4x
Magnification: Amber-Band ≥ 6x – ≤ 7x
Objective Lens ≥ 20mm – ≤ 30mm
Parallax Adjustability No
Reticules Bold posts. German #1, #2, #4, #9, #56
Consider illuminated dots
Handloading Guidelines
Load Development 1.0 grain increments
Primer Large Magnum
Propellant Range Slow-burning rifle: ≥ Hodgdon H-380 – ≤ Hodgdon H-4831
Tips Full length resize for dangerous game hunting
Check feeding before
* Read all about this cartridge in the book African Dangerous Game Cartridges by Pierre van der Walt