Load Specifications
Load data in caliber 10.3 Capra with .415 | 300gr | Rhino Penetrator bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, Alliant Power Pro 1200-R and Winchester 748.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 51,068 psi | 86% | 2379 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 52,881 psi | 89% | 2470 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 51,329 psi | 86% | 2500 fps | 96.4% |
| Accurate 2230 | <<locked>> | 86% | 51,372 psi | 86% | 2503 fps | 96.8% |
| Accurate 2460 | <<locked>> | 92% | 51,547 psi | 87% | 2487 fps | 99.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 47,950 psi | 81% | 2470 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 52,127 psi | 88% | 2533 fps | 99.6% |
| Accurate 4064ᴾ | <<locked>> | 100% | 44,483 psi | 75% | 2448 fps | 99.5% |
| Accurate LT-30 | <<locked>> | 88% | 52,011 psi | 87% | 2398 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 52,431 psi | 88% | 2411 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 98% | 51,924 psi | 87% | 2526 fps | 97.5% |
| ADI AR 2207 | <<locked>> | 86% | 52,475 psi | 88% | 2425 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 50,705 psi | 85% | 2493 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 51,793 psi | 87% | 2497 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 98% | 52,649 psi | 89% | 2536 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 52,388 psi | 88% | 2585 fps | 98.2% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 51,692 psi | 87% | 2595 fps | 96% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 44,570 psi | 75% | 2441 fps | 97% |
| Alliant Reloder-10x | <<locked>> | 92% | 53,345 psi | 90% | 2490 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 48,776 psi | 82% | 2500 fps | 96.3% |
| Alliant Reloder-7 | <<locked>> | 84% | 50,647 psi | 85% | 2398 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 50,546 psi | 85% | 2395 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 51,547 psi | 87% | 2530 fps | 96.1% |
| Bofors RP3ᴾ | <<locked>> | 100% | 43,990 psi | 74% | 2444 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 94% | 51,532 psi | 87% | 2451 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 98% | 52,982 psi | 89% | 2566 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 94% | 51,488 psi | 87% | 2589 fps | 96.8% |
| Hodgdon H322 | <<locked>> | 92% | 52,373 psi | 88% | 2516 fps | 100% |
| Hodgdon H335 | <<locked>> | 92% | 53,635 psi | 90% | 2539 fps | 99.9% |
| Hodgdon H4198 | <<locked>> | 84% | 50,937 psi | 86% | 2398 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 98% | 52,199 psi | 88% | 2539 fps | 98.1% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 50,154 psi | 84% | 2552 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,228 psi | 56% | 1490 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 50,894 psi | 86% | 2497 fps | 97.7% |
| IMR 3031ᴾ | <<locked>> | 100% | 53,200 psi | 89% | 2579 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 49,037 psi | 82% | 2454 fps | 96.3% |
| IMR 4198 | <<locked>> | 90% | 51,329 psi | 86% | 2421 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 49,908 psi | 84% | 2533 fps | 97.2% |
| IMR 8208 XBR | <<locked>> | 96% | 51,793 psi | 87% | 2497 fps | 98.5% |
| Lovex D073.4 | <<locked>> | 86% | 51,924 psi | 87% | 2497 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 92% | 51,576 psi | 87% | 2490 fps | 99.1% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 53,069 psi | 89% | 2556 fps | 99.7% |
| Lovex S053 | <<locked>> | 82% | 52,736 psi | 89% | 2339 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 53,403 psi | 90% | 2474 fps | 97.6% |
| Lovex S062ᴾ | <<locked>> | 100% | 47,892 psi | 81% | 2457 fps | 98% |
| Norma 200 | <<locked>> | 88% | 53,563 psi | 90% | 2470 fps | 100% |
| Norma 201 | <<locked>> | 98% | 50,662 psi | 85% | 2484 fps | 98.4% |
| Norma 202 | <<locked>> | 98% | 50,691 psi | 85% | 2500 fps | 99.8% |
| Norma 203Bᴾ | <<locked>> | 100% | 47,776 psi | 80% | 2490 fps | 96.7% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 48,617 psi | 82% | 2507 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 96% | 50,995 psi | 86% | 2520 fps | 97.2% |
| Ramshot X-Terminator | <<locked>> | 92% | 50,415 psi | 85% | 2454 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,127 psi | 56% | 1522 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 51,909 psi | 87% | 2497 fps | 99.4% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 51,459 psi | 87% | 2602 fps | 96.8% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 42,786 psi | 72% | 2470 fps | 97.9% |
| Rottweil R 901 | <<locked>> | 96% | 51,706 psi | 87% | 2484 fps | 99.7% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 50,836 psi | 85% | 2477 fps | 98.4% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 40,930 psi | 69% | 2382 fps | 95.8% |
| Shooters World AR Plus | <<locked>> | 86% | 51,924 psi | 87% | 2497 fps | 99.5% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 53,069 psi | 89% | 2556 fps | 99.7% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 47,892 psi | 81% | 2457 fps | 98% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 52,634 psi | 89% | 2467 fps | 98.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 53,432 psi | 90% | 2205 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 51,285 psi | 86% | 2500 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 51,169 psi | 86% | 2461 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 53,737 psi | 90% | 2546 fps | 97.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 50,560 psi | 85% | 2411 fps | 99.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 46,195 psi | 78% | 2362 fps | 99.8% |
| Somchem S321 | <<locked>> | 94% | 52,968 psi | 89% | 2536 fps | 98.9% |
| Somchem S335 | <<locked>> | 98% | 52,286 psi | 88% | 2454 fps | 100% |
| Somchem S341 | <<locked>> | 98% | 52,678 psi | 89% | 2516 fps | 97.4% |
| Somchem S355ᴾ | <<locked>> | 100% | 42,467 psi | 71% | 2392 fps | 96% |
| Vihtavuori N120 | <<locked>> | 86% | 52,431 psi | 88% | 2382 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 53,737 psi | 90% | 2441 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 53,185 psi | 89% | 2448 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 48,472 psi | 82% | 2464 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 51,097 psi | 86% | 2477 fps | 99.9% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 40,915 psi | 69% | 2343 fps | 97% |
| Vihtavuori N530 | <<locked>> | 96% | 52,330 psi | 88% | 2497 fps | 98.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 49,342 psi | 83% | 2474 fps | 99.6% |
| Winchester 748 | <<locked>> | 96% | 50,372 psi | 85% | 2533 fps | 99% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 52,881 psi | 89% | 2552 fps | 98.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 47,848 psi | 80% | 2336 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 32,213 psi | 54% | 2146 fps | 98.9% |
| Accurate 2200 | <<locked>> | 84% | 47,921 psi | 81% | 2448 fps | 95.6% |
| Accurate 2230 | <<locked>> | 82% | 44,527 psi | 75% | 2402 fps | 95.3% |
| Accurate 2460 | <<locked>> | 80% | 34,461 psi | 58% | 2211 fps | 96.9% |
| Accurate 2495 | <<locked>> | 80% | 24,656 psi | 41% | 2034 fps | 96.9% |
| Accurate 2520 | <<locked>> | 82% | 32,227 psi | 54% | 2201 fps | 95.8% |
| Accurate 4064 | <<locked>> | 86% | 28,384 psi | 48% | 2139 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 40,828 psi | 69% | 2234 fps | 99.3% |
| Accurate LT-32 | <<locked>> | 80% | 41,205 psi | 69% | 2241 fps | 98.1% |
| ADI AR 2206H | <<locked>> | 92% | 43,047 psi | 72% | 2388 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 43,714 psi | 74% | 2310 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 38,725 psi | 65% | 2310 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 86% | 37,855 psi | 64% | 2270 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 29,472 psi | 50% | 2162 fps | 99.8% |
| Alliant Power Pro 1200-R | 60 gr | 84% | 40,335 psi | 68% | 2392 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 48,443 psi | 81% | 2546 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 39,349 psi | 66% | 2352 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,898 psi | 62% | 2244 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 98% | 45,847 psi | 77% | 2454 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 44,933 psi | 76% | 2320 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,262 psi | 66% | 2228 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 48,356 psi | 81% | 2480 fps | 95.4% |
| Bofors RP3 | <<locked>> | 96% | 38,464 psi | 65% | 2349 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 35,998 psi | 61% | 2195 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 86% | 35,070 psi | 59% | 2274 fps | 95.4% |
| Hodgdon CFE223 | 70.1 gr | 90% | 44,962 psi | 76% | 2484 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 35,476 psi | 60% | 2247 fps | 98.4% |
| Hodgdon H335 | <<locked>> | 80% | 35,824 psi | 60% | 2257 fps | 97.6% |
| Hodgdon H4198 | <<locked>> | 80% | 44,976 psi | 76% | 2313 fps | 99.5% |
| Hodgdon H4895 | <<locked>> | 90% | 40,640 psi | 68% | 2356 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 38,754 psi | 65% | 2359 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,584 psi | 41% | 1329 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 39,639 psi | 67% | 2316 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 28,137 psi | 47% | 2136 fps | 96.9% |
| IMR 4064 | <<locked>> | 98% | 46,093 psi | 78% | 2408 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 38,261 psi | 64% | 2228 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 41,147 psi | 69% | 2392 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 86% | 37,855 psi | 64% | 2270 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 80% | 42,076 psi | 71% | 2352 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 80% | 34,185 psi | 57% | 2205 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 84% | 30,734 psi | 52% | 2182 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 49,763 psi | 84% | 2303 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 42,032 psi | 71% | 2300 fps | 95.1% |
| Lovex S062 | <<locked>> | 92% | 37,376 psi | 63% | 2280 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 41,771 psi | 70% | 2306 fps | 100% |
| Norma 201 | <<locked>> | 88% | 37,217 psi | 63% | 2264 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 28,631 psi | 48% | 2103 fps | 95.1% |
| Norma 203B | <<locked>> | 96% | 42,221 psi | 71% | 2398 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 98% | 45,513 psi | 77% | 2457 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 90% | 41,785 psi | 70% | 2375 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 88% | 44,469 psi | 75% | 2362 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,453 psi | 41% | 1358 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,331 psi | 59% | 2224 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 44,904 psi | 76% | 2497 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 35,288 psi | 59% | 2313 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 32,343 psi | 54% | 2146 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 90% | 37,463 psi | 63% | 2260 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 98% | 38,174 psi | 64% | 2336 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 42,076 psi | 71% | 2352 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 30,734 psi | 52% | 2182 fps | 95.2% |
| Shooters World Precision | <<locked>> | 92% | 37,376 psi | 63% | 2280 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 40,089 psi | 67% | 2277 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 45,745 psi | 77% | 2116 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 39,334 psi | 66% | 2313 fps | 98.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,391 psi | 63% | 2251 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 41,568 psi | 70% | 2362 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 30,908 psi | 52% | 2077 fps | 95.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 26,672 psi | 45% | 1995 fps | 95.3% |
| Somchem S321 | <<locked>> | 82% | 35,288 psi | 59% | 2244 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 30,298 psi | 51% | 2080 fps | 96.6% |
| Somchem S341 | <<locked>> | 92% | 43,062 psi | 72% | 2372 fps | 95.2% |
| Somchem S355 | <<locked>> | 98% | 39,842 psi | 67% | 2349 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 43,743 psi | 74% | 2270 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,215 psi | 59% | 2165 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 80% | 30,676 psi | 52% | 2090 fps | 98.4% |
| Vihtavuori N135 | <<locked>> | 80% | 25,788 psi | 43% | 2047 fps | 97.1% |
| Vihtavuori N140 | <<locked>> | 82% | 28,863 psi | 49% | 2090 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 96% | 35,897 psi | 60% | 2251 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 86% | 37,811 psi | 64% | 2267 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 84% | 29,559 psi | 50% | 2119 fps | 95.2% |
| Winchester 748 | 62.8 gr | 84% | 33,939 psi | 57% | 2247 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 92% | 40,582 psi | 68% | 2362 fps | 95.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 83 powders for 10.3 Capra loaded with the .415 | 300gr | Rhino Penetrator. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,602 fps; across all powders the maximum-charge window runs from 1,490 fps to 2,602 fps. Accurate 2495 gives the best case fill at 100 %, and 83 of the 83 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (410 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 300.0 gr projectile in 0.415" calls for a 1:22.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Alliant Power Pro 2000-MR reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Hodgdon CFE223, Alliant Power Pro 1200-R, Winchester 748 rank at the top here: for 10.3 Capra with the .415 | 300gr | Rhino Penetrator they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.