Load Specifications
Load data in caliber 8 x 57 IS with .323 | 220gr | Ferrobull Entox Sport bullet and 90 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 60 and Alliant Reloder-17.
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% | 49,110 psi | 87% | 2260 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 50,459 psi | 89% | 2316 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 48,385 psi | 86% | 2306 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 48,080 psi | 85% | 2323 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 48,240 psi | 85% | 2343 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 40,277 psi | 71% | 2283 fps | 96.4% |
| Accurate LT-30 | <<locked>> | 82% | 49,966 psi | 88% | 2218 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 50,415 psi | 89% | 2238 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 48,240 psi | 85% | 2333 fps | 99% |
| ADI AR 2208 | <<locked>> | 96% | 49,023 psi | 87% | 2323 fps | 98.6% |
| ADI AR 2219 | <<locked>> | 82% | 49,400 psi | 87% | 2313 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 50,966 psi | 90% | 2339 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 90% | 49,777 psi | 88% | 2323 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 48,689 psi | 86% | 2375 fps | 99.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 50,444 psi | 89% | 2461 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 50,894 psi | 90% | 2385 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 84% | 49,226 psi | 87% | 2264 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 48,704 psi | 86% | 2359 fps | 98.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 41,742 psi | 74% | 2297 fps | 96.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,008 psi | 85% | 2431 fps | 99.4% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 48,834 psi | 86% | 2221 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 50,749 psi | 90% | 2385 fps | 98.5% |
| Bofors RP3 | <<locked>> | 98% | 50,691 psi | 90% | 2395 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 50,053 psi | 88% | 2287 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 90% | 49,081 psi | 87% | 2362 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 88% | 50,734 psi | 90% | 2438 fps | 99% |
| Hodgdon H322 | <<locked>> | 84% | 48,399 psi | 86% | 2300 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 48,820 psi | 86% | 2320 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 49,429 psi | 87% | 2359 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 90% | 48,588 psi | 86% | 2339 fps | 99.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 37,811 psi | 67% | 2198 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 49,792 psi | 88% | 2405 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,011 psi | 60% | 1394 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 49,879 psi | 88% | 2343 fps | 99.4% |
| IMR 3031 | <<locked>> | 92% | 50,647 psi | 90% | 2375 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 48,472 psi | 86% | 2310 fps | 98.7% |
| IMR 4198 | <<locked>> | 84% | 50,227 psi | 89% | 2234 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 39,073 psi | 69% | 2241 fps | 96.1% |
| IMR 4895 | <<locked>> | 94% | 49,893 psi | 88% | 2385 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 90% | 50,966 psi | 90% | 2339 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 86% | 50,343 psi | 89% | 2326 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 49,734 psi | 88% | 2356 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 48,892 psi | 86% | 2274 fps | 99% |
| Lovex S062 | <<locked>> | 96% | 50,676 psi | 90% | 2349 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 46,485 psi | 82% | 2293 fps | 96.2% |
| Norma 201 | <<locked>> | 92% | 49,995 psi | 88% | 2329 fps | 99.8% |
| Norma 202 | <<locked>> | 92% | 50,256 psi | 89% | 2336 fps | 100% |
| Norma 203B | <<locked>> | 96% | 50,908 psi | 90% | 2392 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 41,321 psi | 73% | 2287 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 94% | 47,906 psi | 85% | 2369 fps | 98.9% |
| Ramshot TAC | <<locked>> | 88% | 48,022 psi | 85% | 2300 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 90% | 50,169 psi | 89% | 2365 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 86% | 48,950 psi | 87% | 2297 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,200 psi | 60% | 1427 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 50,676 psi | 90% | 2326 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 50,357 psi | 89% | 2343 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 48,124 psi | 85% | 2411 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 47,921 psi | 85% | 2438 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 40,683 psi | 72% | 2303 fps | 96% |
| Rottweil R 901 | <<locked>> | 90% | 50,952 psi | 90% | 2316 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 50,024 psi | 88% | 2320 fps | 99.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 50,198 psi | 89% | 2379 fps | 99.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 46,485 psi | 82% | 2293 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 92% | 49,734 psi | 88% | 2356 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 50,676 psi | 90% | 2349 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 50,473 psi | 89% | 2300 fps | 99.6% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 49,922 psi | 88% | 2326 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 49,356 psi | 87% | 2395 fps | 99.1% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 50,299 psi | 89% | 2283 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 48,965 psi | 87% | 2323 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 49,777 psi | 88% | 2352 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 49,327 psi | 87% | 2247 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 48,573 psi | 86% | 2244 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 48,182 psi | 85% | 2323 fps | 99.8% |
| Somchem S335 | <<locked>> | 90% | 48,414 psi | 86% | 2251 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 48,457 psi | 86% | 2320 fps | 98.9% |
| Somchem S355 | <<locked>> | 98% | 48,443 psi | 86% | 2346 fps | 99.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,695 psi | 65% | 2241 fps | 98.5% |
| Vihtavuori N130 | <<locked>> | 86% | 49,516 psi | 88% | 2228 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 49,284 psi | 87% | 2241 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 49,197 psi | 87% | 2303 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 50,604 psi | 89% | 2316 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 49,501 psi | 88% | 2326 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 43,671 psi | 77% | 2287 fps | 96.9% |
| Vihtavuori N530 | <<locked>> | 88% | 48,022 psi | 85% | 2293 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 94% | 48,704 psi | 86% | 2316 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 42,438 psi | 75% | 2293 fps | 96.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,121 psi | 80% | 2283 fps | 98.8% |
| Winchester 748 | <<locked>> | 90% | 50,038 psi | 88% | 2379 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 49,081 psi | 87% | 2356 fps | 99.4% |
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% | 38,189 psi | 68% | 2106 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 41,118 psi | 73% | 2188 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 30,197 psi | 53% | 2024 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 36,564 psi | 65% | 2149 fps | 99.2% |
| Accurate 4064 | <<locked>> | 80% | 28,631 psi | 51% | 2005 fps | 98.4% |
| Accurate 4350 | <<locked>> | 98% | 37,536 psi | 66% | 2238 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 46,949 psi | 83% | 2178 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,326 psi | 84% | 2195 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 35,056 psi | 62% | 2106 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 86% | 36,158 psi | 64% | 2113 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 46,325 psi | 82% | 2274 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,101 psi | 66% | 2123 fps | 98% |
| Alliant AR-Comp | <<locked>> | 80% | 35,621 psi | 63% | 2126 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,714 psi | 76% | 2283 fps | 98.7% |
| Alliant Power Pro 2000-MR | 42 gr | 86% | 38,508 psi | 68% | 2254 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 30,472 psi | 54% | 2041 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,569 psi | 77% | 2188 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 35,331 psi | 62% | 2136 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 96% | 37,173 psi | 66% | 2208 fps | 95.1% |
| Alliant Reloder-17 | 42.3 gr | 88% | 32,242 psi | 57% | 2133 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,730 psi | 81% | 2182 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 36,361 psi | 64% | 2152 fps | 95.2% |
| Bofors RP3 | <<locked>> | 82% | 29,472 psi | 52% | 2031 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,218 psi | 69% | 2123 fps | 98.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,722 psi | 61% | 2133 fps | 98% |
| Hodgdon CFE223 | <<locked>> | 80% | 38,377 psi | 68% | 2238 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 80% | 42,148 psi | 75% | 2211 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 42,786 psi | 76% | 2234 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 40,509 psi | 72% | 2221 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 35,288 psi | 62% | 2116 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 31,517 psi | 56% | 2070 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 31,299 psi | 55% | 2080 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,382 psi | 45% | 1247 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,200 psi | 60% | 2083 fps | 96.4% |
| IMR 3031 | <<locked>> | 80% | 33,779 psi | 60% | 2119 fps | 99.9% |
| IMR 4064 | <<locked>> | 82% | 33,373 psi | 59% | 2054 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 44,759 psi | 79% | 2162 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 36,651 psi | 65% | 2198 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 31,763 psi | 56% | 2070 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 37,101 psi | 66% | 2123 fps | 98% |
| Lovex D073.5 | <<locked>> | 80% | 40,756 psi | 72% | 2188 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 80% | 32,880 psi | 58% | 2087 fps | 98.5% |
| Lovex S060 | <<locked>> | 80% | 36,216 psi | 64% | 2067 fps | 96.5% |
| Lovex S062 | <<locked>> | 80% | 30,763 psi | 54% | 2014 fps | 96.2% |
| Lovex S065 | <<locked>> | 98% | 43,990 psi | 78% | 2254 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 34,243 psi | 61% | 2070 fps | 97.4% |
| Norma 202 | <<locked>> | 80% | 34,301 psi | 61% | 2087 fps | 99.2% |
| Norma 203B | <<locked>> | 82% | 32,474 psi | 57% | 2080 fps | 95.3% |
| Norma URP | <<locked>> | 98% | 38,769 psi | 69% | 2241 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 84% | 34,272 psi | 61% | 2133 fps | 95.5% |
| Ramshot TAC | <<locked>> | 84% | 42,047 psi | 74% | 2208 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 35,795 psi | 63% | 2133 fps | 96.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,089 psi | 71% | 2159 fps | 97.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,396 psi | 45% | 1276 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,698 psi | 74% | 2198 fps | 99.6% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 47,036 psi | 83% | 2297 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 34,026 psi | 60% | 2162 fps | 95.1% |
| ReloadSwiss RS 60 | 39.4 gr | 82% | 28,282 psi | 50% | 2044 fps | 96% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 38,203 psi | 68% | 2257 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 37,550 psi | 66% | 2113 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 80% | 32,561 psi | 58% | 2031 fps | 96.8% |
| Rottweil R 903 | <<locked>> | 84% | 29,617 psi | 52% | 2028 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 98% | 43,990 psi | 78% | 2254 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,880 psi | 58% | 2087 fps | 98.5% |
| Shooters World Precision | <<locked>> | 80% | 30,763 psi | 54% | 2014 fps | 96.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,164 psi | 78% | 2211 fps | 99% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 46,601 psi | 82% | 2280 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 33,417 psi | 59% | 2119 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,454 psi | 79% | 2205 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 39,639 psi | 70% | 2178 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 33,663 psi | 60% | 2080 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,216 psi | 64% | 2051 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,443 psi | 52% | 1939 fps | 98.9% |
| Somchem S321 | <<locked>> | 80% | 39,494 psi | 70% | 2188 fps | 98.8% |
| Somchem S335 | <<locked>> | 80% | 35,534 psi | 63% | 2054 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 34,447 psi | 61% | 2093 fps | 95.8% |
| Somchem S355 | <<locked>> | 84% | 31,024 psi | 55% | 2041 fps | 95.3% |
| Somchem S365 | <<locked>> | 92% | 28,413 psi | 50% | 2054 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 41,234 psi | 73% | 2116 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,289 psi | 64% | 2054 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,285 psi | 55% | 2031 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 32,372 psi | 57% | 2034 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 82% | 27,543 psi | 49% | 1949 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 96% | 38,464 psi | 68% | 2201 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 36,869 psi | 65% | 2116 fps | 98% |
| Vihtavuori N540 | <<locked>> | 80% | 31,009 psi | 55% | 2024 fps | 98.4% |
| Vihtavuori N550 | <<locked>> | 96% | 37,478 psi | 66% | 2205 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 32,518 psi | 57% | 2057 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 35,578 psi | 63% | 2149 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,663 psi | 58% | 2080 fps | 96% |
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 90 powders for 8 x 57 IS loaded with the .323 | 220gr | Ferrobull Entox Sport. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,461 fps; across all powders the maximum-charge window runs from 1,394 fps to 2,461 fps. Accurate 4350 gives the best case fill at 100 %, and 90 of the 90 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.323" calls for a 1:12.0 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 60, Alliant Reloder-17 rank at the top here: for 8 x 57 IS with the .323 | 220gr | Ferrobull Entox Sport 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.