Load Specifications
Load data in caliber 8 x 57 IS with .323 | 220gr | Woodleigh PP SN bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Alliant Power Pro 2000-MR.
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 2015 | <<locked>> | 84% | 48,834 psi | 86% | 2287 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 50,038 psi | 88% | 2343 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 49,342 psi | 87% | 2343 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 48,269 psi | 85% | 2356 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 49,298 psi | 87% | 2379 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 47,906 psi | 85% | 2434 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 88% | 50,894 psi | 90% | 2405 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 92% | 48,573 psi | 86% | 2359 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 86% | 50,285 psi | 89% | 2369 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 86% | 50,125 psi | 89% | 2349 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 49,908 psi | 88% | 2497 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 48,124 psi | 85% | 2382 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 90% | 48,704 psi | 86% | 2395 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,239 psi | 84% | 2434 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 47,848 psi | 85% | 2470 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,518 psi | 59% | 2205 fps | 96.5% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 50,270 psi | 89% | 2418 fps | 99% |
| Bofors RP3 | <<locked>> | 94% | 51,068 psi | 90% | 2434 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 84% | 49,197 psi | 87% | 2313 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 48,675 psi | 86% | 2388 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 50,227 psi | 89% | 2467 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 82% | 50,705 psi | 90% | 2362 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 49,255 psi | 87% | 2395 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 98% | 47,921 psi | 85% | 2428 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 86% | 48,312 psi | 85% | 2372 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,424 psi | 77% | 2333 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 49,676 psi | 88% | 2438 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,853 psi | 62% | 1440 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 49,269 psi | 87% | 2372 fps | 99.7% |
| IMR 3031 | <<locked>> | 88% | 50,676 psi | 90% | 2402 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 51,126 psi | 90% | 2385 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 88% | 48,646 psi | 86% | 2323 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 96% | 51,126 psi | 90% | 2388 fps | 96.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 45,498 psi | 80% | 2382 fps | 98.3% |
| IMR 4895 | <<locked>> | 90% | 49,893 psi | 88% | 2421 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 86% | 50,285 psi | 89% | 2369 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 82% | 50,009 psi | 88% | 2356 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 49,661 psi | 88% | 2385 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 48,196 psi | 85% | 2303 fps | 99.4% |
| Lovex S062 | <<locked>> | 92% | 50,981 psi | 90% | 2388 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 49,864 psi | 88% | 2382 fps | 97.7% |
| Lovex S070ᴾ | <<locked>> | 100% | 50,198 psi | 89% | 2405 fps | 96.7% |
| Norma 201 | <<locked>> | 88% | 49,705 psi | 88% | 2359 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 50,169 psi | 89% | 2365 fps | 100% |
| Norma 203B | <<locked>> | 92% | 50,937 psi | 90% | 2428 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 47,572 psi | 84% | 2425 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 92% | 50,908 psi | 90% | 2448 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 46,818 psi | 83% | 2418 fps | 96.7% |
| Ramshot TAC | <<locked>> | 86% | 50,401 psi | 89% | 2379 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 49,690 psi | 88% | 2398 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 84% | 51,082 psi | 90% | 2365 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,404 psi | 63% | 1480 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 49,893 psi | 88% | 2352 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 49,980 psi | 88% | 2382 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 48,037 psi | 85% | 2444 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 51,082 psi | 90% | 2523 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 47,485 psi | 84% | 2451 fps | 98.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 48,530 psi | 86% | 2470 fps | 97.9% |
| Rottweil R 901 | <<locked>> | 86% | 51,024 psi | 90% | 2349 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 50,285 psi | 89% | 2359 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 50,952 psi | 90% | 2425 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 98% | 49,864 psi | 88% | 2382 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 49,661 psi | 88% | 2385 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 50,981 psi | 90% | 2388 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 50,198 psi | 89% | 2405 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 49,458 psi | 87% | 2434 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 48,254 psi | 85% | 2352 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 49,095 psi | 87% | 2379 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 48,675 psi | 86% | 2274 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 51,155 psi | 90% | 2310 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 50,140 psi | 89% | 2339 fps | 96.3% |
| Somchem S321 | <<locked>> | 84% | 51,039 psi | 90% | 2395 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 50,807 psi | 90% | 2313 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 48,022 psi | 85% | 2352 fps | 99.3% |
| Somchem S355 | <<locked>> | 94% | 48,660 psi | 86% | 2382 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,467 psi | 75% | 2382 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 82% | 48,718 psi | 86% | 2247 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 48,776 psi | 86% | 2264 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 49,269 psi | 87% | 2333 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 50,444 psi | 89% | 2349 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 49,777 psi | 88% | 2365 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 50,285 psi | 89% | 2425 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 86% | 50,662 psi | 90% | 2365 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 48,646 psi | 86% | 2346 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 49,240 psi | 87% | 2431 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,549 psi | 63% | 2270 fps | 96.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 51,082 psi | 90% | 2415 fps | 99.9% |
| Winchester 748 | <<locked>> | 86% | 49,690 psi | 88% | 2405 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 48,196 psi | 85% | 2431 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 88% | 48,675 psi | 86% | 2385 fps | 99.7% |
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% | 43,250 psi | 76% | 2208 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,036 psi | 83% | 2303 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,795 psi | 63% | 2142 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,945 psi | 74% | 2264 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 33,866 psi | 60% | 2133 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 33,852 psi | 60% | 2192 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 39,552 psi | 70% | 2224 fps | 98% |
| ADI AR 2208 | <<locked>> | 80% | 33,895 psi | 60% | 2100 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,539 psi | 73% | 2234 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 80% | 40,944 psi | 72% | 2228 fps | 100% |
| Alliant Power Pro 2000-MR | 43.1 gr | 80% | 35,723 psi | 63% | 2238 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,011 psi | 58% | 2116 fps | 97.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,462 psi | 63% | 2165 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,041 psi | 62% | 2205 fps | 95.3% |
| Alliant Reloder-17 | 43.5 gr | 82% | 30,414 psi | 54% | 2126 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,618 psi | 56% | 2159 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,421 psi | 68% | 2224 fps | 96.7% |
| Bofors RP3 | <<locked>> | 80% | 32,300 psi | 57% | 2116 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,627 psi | 77% | 2228 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,885 psi | 71% | 2254 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,700 psi | 77% | 2365 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 80% | 47,543 psi | 84% | 2320 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 35,708 psi | 63% | 2165 fps | 95% |
| Hodgdon H414 | <<locked>> | 96% | 45,005 psi | 80% | 2379 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 39,856 psi | 70% | 2234 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 29,994 psi | 53% | 2070 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,679 psi | 63% | 2205 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,918 psi | 46% | 1286 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,435 psi | 68% | 2195 fps | 98.2% |
| IMR 3031 | <<locked>> | 80% | 39,146 psi | 69% | 2238 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,534 psi | 63% | 2126 fps | 96.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 45,818 psi | 81% | 2277 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 45,295 psi | 80% | 2300 fps | 95.1% |
| IMR 4831 | <<locked>> | 92% | 35,230 psi | 62% | 2201 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 36,260 psi | 64% | 2192 fps | 97.4% |
| IMR 8208 XBR | <<locked>> | 80% | 41,539 psi | 73% | 2234 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 80% | 46,746 psi | 83% | 2310 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 38,203 psi | 68% | 2211 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 40,176 psi | 71% | 2172 fps | 98.2% |
| Lovex S062 | <<locked>> | 80% | 35,114 psi | 62% | 2129 fps | 98.2% |
| Lovex S065 | <<locked>> | 90% | 39,102 psi | 69% | 2205 fps | 95.1% |
| Lovex S070 | <<locked>> | 96% | 44,367 psi | 78% | 2316 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 39,015 psi | 69% | 2188 fps | 99% |
| Norma 202 | <<locked>> | 80% | 39,001 psi | 69% | 2198 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 34,824 psi | 62% | 2156 fps | 96.9% |
| Norma URP | <<locked>> | 90% | 34,722 psi | 61% | 2195 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 34,330 psi | 61% | 2165 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 96% | 41,220 psi | 73% | 2323 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 41,452 psi | 73% | 2234 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,625 psi | 72% | 2254 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,092 psi | 80% | 2277 fps | 98.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,252 psi | 46% | 1319 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,615 psi | 82% | 2306 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 44,005 psi | 78% | 2290 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,738 psi | 65% | 2251 fps | 96.9% |
| ReloadSwiss RS 60 | 42.4 gr | 80% | 30,269 psi | 54% | 2133 fps | 97.9% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 36,201 psi | 64% | 2254 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 39,610 psi | 70% | 2313 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 42,685 psi | 75% | 2224 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,072 psi | 66% | 2146 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 30,371 psi | 54% | 2067 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 39,102 psi | 69% | 2205 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,203 psi | 68% | 2211 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 35,114 psi | 62% | 2129 fps | 98.2% |
| Shooters World SW4350 | <<locked>> | 96% | 44,367 psi | 78% | 2316 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,589 psi | 56% | 2110 fps | 95.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,537 psi | 70% | 2211 fps | 96.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,247 psi | 68% | 2201 fps | 97.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,422 psi | 71% | 2152 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,272 psi | 59% | 2041 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 46,659 psi | 82% | 2290 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 44,614 psi | 79% | 2303 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 40,118 psi | 71% | 2159 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,131 psi | 69% | 2211 fps | 97.8% |
| Somchem S355 | <<locked>> | 80% | 31,575 psi | 56% | 2077 fps | 96.3% |
| Somchem S365 | <<locked>> | 86% | 27,296 psi | 48% | 2054 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 45,774 psi | 81% | 2208 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,582 psi | 72% | 2149 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,984 psi | 64% | 2136 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,825 psi | 65% | 2142 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 29,834 psi | 53% | 2024 fps | 97.1% |
| Vihtavuori N160 | <<locked>> | 90% | 36,448 psi | 64% | 2198 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 41,597 psi | 74% | 2231 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 80% | 35,346 psi | 62% | 2133 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 35,621 psi | 63% | 2201 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 98% | 33,373 psi | 59% | 2224 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,429 psi | 54% | 2047 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 40,582 psi | 72% | 2267 fps | 99.7% |
| Winchester 760 | <<locked>> | 96% | 45,324 psi | 80% | 2385 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,217 psi | 66% | 2198 fps | 98.1% |
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 105 powders for 8 x 57 IS loaded with the .323 | 220gr | Woodleigh PP SN. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,523 fps; across all powders the maximum-charge window runs from 1,440 fps to 2,523 fps. Accurate 3100 gives the best case fill at 100 %, and 105 of the 105 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.323" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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. ReloadSwiss RS 60, Alliant Reloder-17, Alliant Power Pro 2000-MR rank at the top here: for 8 x 57 IS with the .323 | 220gr | Woodleigh PP SN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 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.