10.3 Capra Load Data & Reloading Guide

Rifle

Also known as: 10.3mm Capra

About 10.3 Capra

The 10.3 Capra cartridge emerged as a response to the need for a versatile hunting round tailored to mountainous terrain and long-range shooting. Developed in the early 21st century, this caliber was designed to offer robust performance for European big game hunters, particularly those targeting species like ibex and chamois. Its inception was driven by the demand for a round that could maintain energy at extended distances while conforming to regional hunting regulations.

Technically, the 10.3 Capra features a bullet diameter of 10.3 millimeters, approximately .406 inches, and is typically housed in a rimless bottlenecked casing. It operates at higher pressures compared to traditional hunting cartridges, allowing it to achieve impressive velocity and energy. The cartridge often accommodates bullet weights ranging from 200 to 300 grains, providing a balance between range and stopping power which is essential for effective long-range shooting.

Ballistically, the 10.3 Capra demonstrates flat trajectories and excellent energy retention. Its design ensures stability in flight, making it a reliable choice for hitting targets at variable distances without sacrificing precision. The recoil is manageable, allowing for quick follow-up shots if necessary, which is advantageous in hunting scenarios where multiple engagements are common.

Reloaders favor the 10.3 Capra for its flexibility in bullet selection and powder loads, allowing customization to match specific hunting conditions and personal preferences. Its widespread popularity among European reloaders is due to the combination of precision and adaptability, making it a preferred choice for hunters focused on large game in diverse environments. The compatibility with modern loading equipment also ensures that reloaders can achieve consistent performance tailored to their unique shooting needs.

Technical Drawing

10.3 Capra technical drawing and load data

Technical Specifications

Maximum Pressure:59466 PSI / 4100 bar
Case Volume:101.5 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Safety Standard:C.I.P.
Bore Area:85.16 mm²
Barrel Diameter:0.413" / 10.5 mm
L3:2.697" / 68.5 mm
L6:3.307" / 84.0 mm

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Standard Load Data — 10.3 Capra

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.

All
200 gr
215 gr
231 gr
235 gr
260 gr
300 gr
305 gr
350 gr
400 gr
Reichenberg logo

.416 | 300gr | Reichenberg Super Penetr.

BC G1: 0.185
86 powders568 loads
North Fork logo

.411 | 300gr | NorthFork Bonded Core

BC G1: 0.325
87 powders566 loads
Alaska Bullet Works logo

.416 | 350gr | Alaska Bullet Works Kodiak PP SPBC

BC G1: 0.367
97 powders563 loads
Rhino Bullets logo

.415 | 350gr | Rhino Solid Shank

BC G1: 0.225
93 powders544 loads
Swift logo

.411 | 350gr | Swift A-Frame

BC G1: 0.328
92 powders542 loads
Speer logo

.416 | 350gr | Speer Hot-Cor

BC G1: 0.332
91 powders539 loads
Hornady logo

.411 | 300gr | Hornady InterLock FP

BC G1: 0.25
85 powders538 loads
Swift logo

.416 | 350gr | Swift A-Frame

BC G1: 0.321
91 powders536 loads
Reichenberg logo

.416 | 300gr | Reichenberg Solid

BC G1: 0.165
83 powders534 loads
A-Square logo

.416 | 400gr | A-Square DeadTough

BC G1: 0.316
97 powders529 loads
Alaska Bullet Works logo

.412 | 300gr | Alaska Bullet Works Kodiak PP SPBC

BC G1: 0.265
89 powders529 loads
Barnes logo

.411 | 300gr | Barnes TSX FB

BC G1: 0.281
84 powders517 loads
Reichenberg logo

.416 | 300gr | Reichenberg HDB Universal

BC G1: 0.176
84 powders511 loads
Rhino Bullets logo

.415 | 300gr | Rhino Penetrator

BC G1: 0.247
84 powders509 loads
Brenneke logo

.413 | 235gr | Brenneke TOG

BC G1: 0.177
82 powders506 loads
Styria Arms | AERO logo

.416 | 305gr | AERO SORN,- smax:12.90

BC G1: 0.2554
81 powders502 loads
Impala Bullets logo

.410 | 260gr | Impala LW CFN

BC G1: 0.192
78 powders451 loads
Reichenberg logo

.413 | 231gr | Reichenberg Solid

BC G1: 0.132
75 powders430 loads
Styria Arms | AERO logo

.416 | 235gr | AERO SB,- smax:12.90

BC G1: 0.255
66 powders407 loads
Reichenberg logo

.413 | 200gr | Reichenberg HDB Sp. Jagd

BC G1: 0.11
58 powders347 loads
Styria Arms | AERO logo

.414 | 215gr | AERO SB,- smax:11.40

BC G1: 0.2554
56 powders340 loads
Styria Arms | AERO logo

.416 | 215gr | AERO SB,- smax:11.10

BC G1: 0.255
56 powders331 loads
Impala Bullets logo

.413 | 200gr | Impala LWHV LS

BC G1: 0.231
51 powders302 loads
Reichenberg logo

.413 | 200gr | Reichenberg HDB Universal

BC G1: 0.14
53 powders299 loads

Frequently Asked Questions

The maximum pressure for 10.3 Capra is 59,466 psi | 4,100 bar.

10.3 Capra typically uses a Large Rifle Magnum (LRM) primer.

The case capacity of 10.3 Capra is approximately 101.5 grains of water (H₂O).