8 x 65 RS Load Data & Reloading Guide
Also known as: 8x65RS, 8×65mm RS, 8mm x 65mm RS
About 8 x 65 RS
The 8 x 65 RS caliber emerged as a versatile hunting cartridge, primarily developed in Europe during the early to mid-20th century. With its roots in Germany, this caliber was designed to satisfy the demand for a powerful round suitable for large game hunting, particularly within the varied terrains found across Europe. Its introduction bridged the gap between older black powder cartridges and the more modern, high-velocity rounds, providing hunters and sportsmen with a reliable option for both rifles and break-action firearms, including combination guns.
One of the defining technical characteristics of the 8 x 65 RS is its rimmed case design, which is well-suited for single-shot and break-action rifles. The cartridge features a case length of 65 millimeters and a rimmed base that provides positive extraction in these types of firearms. This characteristic enhances its popularity in regions where traditional hunting with break-action firearms remains prevalent. The caliber typically accommodates bullet diameters around 8.2 millimeters (approximately 0.323 inches), comparable to the widely known 8mm bullet size, facilitating the use of a broad range of bullet types for various hunting scenarios.
Ballistically, the 8 x 65 RS provides impressive performance with bullet weights commonly ranging from 180 to 200 grains. These loads offer balanced velocity and energy, making them effective for medium to large game, such as deer, boar, and even elk. The caliber's design enables a good balance of velocity and stopping power, typically achieving muzzle velocities in the range of 2550 to 2700 feet per second, dependent on factors like bullet weight and specific powder load configurations.
For reloading enthusiasts, the 8 x 65 RS presents several advantages. The availability of numerous bullet styles and weights allows for customization according to the hunter's specific requirements. Moreover, the rimmed case design simplifies case handling and reloading procedures. Reloaders can optimize the round for precise ballistic performance tailored to their personal or local hunting conditions. Those who choose this caliber appreciate its enduring popularity and the ability to fine-tune reloads for increased accuracy or specialized applications, ensuring a versatile, effective solution for diverse hunting needs.
Technical Drawing
Based on C.I.P., the max. allowed case length is 2.559 in / 65.00 mm, the max. cartridge length is 3.445 in / 87.50 mm, and the max. allowed pressure is 58,740 PSI / 4,050 bar.
Technical Specifications
Start Calculating to Develop your own Load Data for 8 x 65 RS
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Start CalculatingStandard Load Data — 8 x 65 RS
Select your desired cartridge and bullet weight below to access the corresponding load table. From there, you can choose any listed load recipe and transfer it directly into the ballistics calculator for further refinement, optimization, and precision tuning.
.323 | 180gr | Barnes TSX BT
.323 | 138.9gr | Sax KJG-SR
.323 | 220gr | Swift A-Frame
.323 | 165gr | AERO SB,- smax:14.55
.323 | 160gr | Fox Classic Hunter
.323 | 200gr | Speer Hot-Cor
.323 | 145gr | AERO SB | HSD 1.5,- smax:13.95
.323 | 200gr | Peregrine VRG-3
.323 | 180gr | Barnes X S
.323 | 200gr | MEN SP
.323 | 125gr | Hornady SP
.323 | 175gr | Atomic 29 HP
.323 | 200gr | Peregrine VLR-4
.322 | 175gr | Prvi Partizan PSP BT
.323 | 190gr | AERO SUB,- smax:21.00
.322 | 196gr | Prvi Partizan SP
.323 | 200gr | Swift A-Frame
.323 | 196gr | Sellier & Bellot SPCE
.323 | 200gr | Nosler AccuBond
.323 | 180gr | Fox Classic Hunter
.323 | 147gr | Sax KJG-SR
.323 | 160gr | Hasler ARIETE
.323 | 165gr | Peregrine VLR-4
.323 | 108gr | Norma FMJ RN
Frequently Asked Questions
The maximum pressure for 8 x 65 RS is 58,740 psi | 4,050 bar.
8 x 65 RS typically uses a Large Rifle (LR) primer.
The case capacity of 8 x 65 RS is approximately 70 grains of water (H₂O).