Load Specifications
Load data in caliber 8 x 57 IS with .323 | 200gr | Ferrobull Entox Sport bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and ReloadSwiss RS 60.
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.
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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 2015 | <<locked>> | 88% | 49,298 psi | 87% | 2415 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 50,908 psi | 90% | 2477 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 48,631 psi | 86% | 2461 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 48,559 psi | 86% | 2480 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 48,559 psi | 86% | 2497 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 40,770 psi | 72% | 2434 fps | 96% |
| Accurate LT-30 | <<locked>> | 82% | 50,140 psi | 89% | 2372 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 50,575 psi | 89% | 2388 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 48,341 psi | 85% | 2484 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 96% | 49,371 psi | 87% | 2480 fps | 98.3% |
| ADI AR 2219 | <<locked>> | 82% | 49,908 psi | 88% | 2474 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 51,068 psi | 90% | 2493 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 90% | 50,372 psi | 89% | 2484 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 48,907 psi | 86% | 2536 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 50,850 psi | 90% | 2621 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 51,169 psi | 90% | 2543 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 84% | 49,385 psi | 87% | 2421 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 48,950 psi | 87% | 2513 fps | 98.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,105 psi | 74% | 2448 fps | 96.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,457 psi | 86% | 2592 fps | 99.1% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 48,820 psi | 86% | 2369 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 51,010 psi | 90% | 2539 fps | 98.2% |
| Bofors RP3 | <<locked>> | 96% | 47,659 psi | 84% | 2503 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 88% | 50,546 psi | 89% | 2444 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 90% | 49,414 psi | 87% | 2520 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 88% | 51,082 psi | 90% | 2598 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 84% | 48,602 psi | 86% | 2457 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 49,313 psi | 87% | 2477 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 49,821 psi | 88% | 2516 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 90% | 48,689 psi | 86% | 2493 fps | 99.1% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,290 psi | 68% | 2346 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 50,169 psi | 89% | 2566 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,272 psi | 61% | 1506 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 50,401 psi | 89% | 2500 fps | 99.3% |
| IMR 3031 | <<locked>> | 92% | 50,952 psi | 90% | 2536 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 48,733 psi | 86% | 2464 fps | 98.4% |
| IMR 4198 | <<locked>> | 84% | 50,604 psi | 89% | 2392 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 50,169 psi | 89% | 2543 fps | 99% |
| IMR 8208 XBR | <<locked>> | 90% | 51,068 psi | 90% | 2493 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 86% | 50,821 psi | 90% | 2484 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 92% | 49,908 psi | 88% | 2510 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 49,284 psi | 87% | 2428 fps | 98.8% |
| Lovex S062 | <<locked>> | 96% | 51,010 psi | 90% | 2510 fps | 99.7% |
| Lovex S065ᴾ | <<locked>> | 100% | 46,905 psi | 83% | 2444 fps | 95.8% |
| Norma 201 | <<locked>> | 92% | 50,096 psi | 89% | 2484 fps | 99.6% |
| Norma 202 | <<locked>> | 92% | 50,647 psi | 90% | 2497 fps | 100% |
| Norma 203B | <<locked>> | 94% | 48,066 psi | 85% | 2503 fps | 98.7% |
| Norma URPᴾ | <<locked>> | 100% | 41,843 psi | 74% | 2438 fps | 96% |
| Ramshot Big Game | <<locked>> | 94% | 48,327 psi | 85% | 2526 fps | 98.6% |
| Ramshot TAC | <<locked>> | 88% | 48,457 psi | 86% | 2454 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 90% | 50,444 psi | 89% | 2523 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 86% | 49,139 psi | 87% | 2451 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,374 psi | 61% | 1539 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 51,068 psi | 90% | 2487 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 50,850 psi | 90% | 2500 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 48,254 psi | 85% | 2566 fps | 98.3% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 48,341 psi | 85% | 2598 fps | 100% |
| Rottweil R 901 | <<locked>> | 88% | 48,182 psi | 85% | 2431 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 50,372 psi | 89% | 2477 fps | 99.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 50,865 psi | 90% | 2543 fps | 99.4% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 46,905 psi | 83% | 2444 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 92% | 49,908 psi | 88% | 2510 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 51,010 psi | 90% | 2510 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 50,995 psi | 90% | 2457 fps | 99.5% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 50,009 psi | 88% | 2480 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 49,661 psi | 88% | 2552 fps | 98.8% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 50,430 psi | 89% | 2438 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 49,211 psi | 87% | 2477 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 49,893 psi | 88% | 2503 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 49,719 psi | 88% | 2402 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 48,907 psi | 86% | 2398 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 48,646 psi | 86% | 2480 fps | 99.6% |
| Somchem S335 | <<locked>> | 90% | 48,414 psi | 86% | 2398 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 48,675 psi | 86% | 2474 fps | 98.6% |
| Somchem S355 | <<locked>> | 98% | 48,762 psi | 86% | 2500 fps | 99.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,144 psi | 66% | 2388 fps | 98.1% |
| Vihtavuori N130 | <<locked>> | 86% | 49,734 psi | 88% | 2382 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 49,690 psi | 88% | 2395 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 49,501 psi | 88% | 2461 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 51,010 psi | 90% | 2474 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,125 psi | 89% | 2487 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 44,135 psi | 78% | 2441 fps | 96.5% |
| Vihtavuori N530 | <<locked>> | 88% | 48,283 psi | 85% | 2448 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 94% | 49,052 psi | 87% | 2470 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 42,931 psi | 76% | 2441 fps | 96% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,527 psi | 80% | 2434 fps | 98.6% |
| Winchester 748 | <<locked>> | 90% | 50,270 psi | 89% | 2536 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 92% | 49,240 psi | 87% | 2510 fps | 99.2% |
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 2015 | <<locked>> | 80% | 38,348 psi | 68% | 2251 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 41,307 psi | 73% | 2333 fps | 99.7% |
| Accurate 2495 | <<locked>> | 80% | 30,400 psi | 54% | 2156 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 36,709 psi | 65% | 2287 fps | 98.9% |
| Accurate 4064 | <<locked>> | 80% | 28,834 psi | 51% | 2139 fps | 97.9% |
| Accurate 4350 | <<locked>> | 98% | 37,942 psi | 67% | 2382 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 47,021 psi | 83% | 2326 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,456 psi | 84% | 2346 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 80% | 35,128 psi | 62% | 2244 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 86% | 36,376 psi | 64% | 2254 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 46,369 psi | 82% | 2425 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,159 psi | 66% | 2264 fps | 97.5% |
| Alliant AR-Comp | <<locked>> | 80% | 35,694 psi | 63% | 2270 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,772 psi | 76% | 2434 fps | 98.3% |
| Alliant Power Pro 2000-MR | 45.8 gr | 86% | 38,667 psi | 68% | 2398 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 30,705 psi | 54% | 2172 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,859 psi | 78% | 2343 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 35,491 psi | 63% | 2274 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 98% | 39,552 psi | 70% | 2395 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 90% | 34,635 psi | 61% | 2323 fps | 95.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,948 psi | 81% | 2329 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 38,957 psi | 69% | 2339 fps | 95.5% |
| Bofors RP3 | <<locked>> | 84% | 31,821 psi | 56% | 2215 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,407 psi | 70% | 2264 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,838 psi | 62% | 2267 fps | 97.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 38,508 psi | 68% | 2382 fps | 96% |
| Hodgdon H322 | <<locked>> | 80% | 42,525 psi | 75% | 2365 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,134 psi | 76% | 2385 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 40,683 psi | 72% | 2365 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 35,317 psi | 62% | 2254 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 33,852 psi | 60% | 2254 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 31,488 psi | 56% | 2215 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,295 psi | 45% | 1342 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,258 psi | 61% | 2218 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 34,127 psi | 60% | 2267 fps | 99.8% |
| IMR 4064 | <<locked>> | 84% | 35,723 psi | 63% | 2234 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 44,918 psi | 79% | 2316 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 33,997 psi | 60% | 2254 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 37,159 psi | 66% | 2264 fps | 97.5% |
| Lovex D073.5 | <<locked>> | 80% | 41,031 psi | 73% | 2333 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 80% | 32,924 psi | 58% | 2221 fps | 98.1% |
| Lovex S060 | <<locked>> | 80% | 36,245 psi | 64% | 2201 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 30,777 psi | 54% | 2142 fps | 95.6% |
| Lovex S065 | <<locked>> | 98% | 44,324 psi | 78% | 2402 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 34,447 psi | 61% | 2208 fps | 96.9% |
| Norma 202 | <<locked>> | 80% | 34,447 psi | 61% | 2224 fps | 98.9% |
| Norma 203B | <<locked>> | 84% | 34,824 psi | 62% | 2264 fps | 95.6% |
| Norma URP | <<locked>> | 98% | 39,175 psi | 69% | 2388 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 84% | 34,621 psi | 61% | 2274 fps | 95% |
| Ramshot TAC | <<locked>> | 86% | 45,310 psi | 80% | 2405 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,071 psi | 64% | 2274 fps | 95.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,364 psi | 71% | 2303 fps | 96.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,251 psi | 45% | 1371 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,858 psi | 74% | 2346 fps | 99.4% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 47,442 psi | 84% | 2448 fps | 95% |
| ReloadSwiss RS 52 | 43.4 gr | 84% | 36,724 psi | 65% | 2359 fps | 95.5% |
| ReloadSwiss RS 60 | 43 gr | 82% | 28,471 psi | 50% | 2172 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 37,782 psi | 67% | 2257 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 80% | 32,663 psi | 58% | 2165 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 86% | 31,966 psi | 57% | 2208 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 98% | 44,324 psi | 78% | 2402 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,924 psi | 58% | 2221 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 30,777 psi | 54% | 2142 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,222 psi | 78% | 2356 fps | 98.7% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 46,963 psi | 83% | 2438 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 36,027 psi | 64% | 2310 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,425 psi | 79% | 2356 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 42,975 psi | 76% | 2375 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 33,721 psi | 60% | 2215 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,187 psi | 64% | 2185 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,457 psi | 52% | 2064 fps | 98.5% |
| Somchem S321 | <<locked>> | 80% | 39,711 psi | 70% | 2333 fps | 98.4% |
| Somchem S335 | <<locked>> | 80% | 35,752 psi | 63% | 2195 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 34,650 psi | 61% | 2228 fps | 95.2% |
| Somchem S355 | <<locked>> | 86% | 33,243 psi | 59% | 2221 fps | 95.5% |
| Somchem S365 | <<locked>> | 94% | 30,603 psi | 54% | 2238 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 41,220 psi | 73% | 2257 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,274 psi | 64% | 2192 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,285 psi | 55% | 2162 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 80% | 32,532 psi | 58% | 2169 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 84% | 29,617 psi | 52% | 2123 fps | 95.7% |
| Vihtavuori N160 | <<locked>> | 98% | 41,336 psi | 73% | 2392 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 37,086 psi | 66% | 2260 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 80% | 31,125 psi | 55% | 2152 fps | 98% |
| Vihtavuori N550 | <<locked>> | 98% | 40,292 psi | 71% | 2395 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 34,911 psi | 62% | 2238 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 35,766 psi | 63% | 2290 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,779 psi | 58% | 2215 fps | 95.4% |
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 107 powders for 8 x 57 IS loaded with the .323 | 200gr | Ferrobull Entox Sport. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,621 fps; across all powders the maximum-charge window runs from 1,506 fps to 2,621 fps. Accurate 4350 gives the best case fill at 100 %, and 107 of the 107 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.323" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 52, ReloadSwiss RS 60 rank at the top here: for 8 x 57 IS with the .323 | 200gr | Ferrobull Entox Sport they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.