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.375 R Hoelderlin
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Caliber Specifications:
Caliber: | .375 R Hoelderlin |
Standard / Datasheet: | C.I.P. |
Bullet Diameter: | 0.375" | 9.52mm |
Primer Size: | Large Rifle Magnum (LRM) |
Max. Case Length: | 2.657" | 67.49mm |
Max. Cartridge Length / OAL: | 3.425" | 86.99mm |
Max. Standardized Pressure: | 52214 psi | 3600 bar |
Case Capacity: | 88.0 Grains of Water | 5.71 cm3 |
CID: | CID_554 |
Last updated: | 2/20/2025 |
- The .375 R Hölderlin is a wildcat cartridge based on the 8x57mm Mauser cartridge case. It was developed by German gunsmith and wildcat cartridge enthusiast, Reinhold Hölderlin in the 1960s.
The .375 R Hölderlin cartridge is not a standardized cartridge, and as such, there is no specific industry standard for its performance specifications. Generally, it is believed to use a .375 caliber bullet and have a similar overall length and case capacity to the .375 H&H Magnum cartridge. However, the .375 R Hölderlin is not as powerful as the .375 H&H Magnum. 
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Most popular powders from our community members for caliber .375 R Hoelderlin:
Weight vs. Velocity - Suitable Bullets for this Caliber
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Barrel Length Variation vs. Velocity - by Bullet Weight
.375 R Hoelderlin load data available with the following bullets:
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