Load Specifications
Load data in caliber 8 x 57 IS with .323 | 180gr | Sako Powerhead Blade bullet and 86 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 Hodgdon CFE223.
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>> | 92% | 50,067 psi | 89% | 2556 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 48,066 psi | 85% | 2579 fps | 96.6% |
| Accurate 2230 | <<locked>> | 82% | 48,022 psi | 85% | 2582 fps | 97% |
| Accurate 2460 | <<locked>> | 88% | 48,515 psi | 86% | 2569 fps | 99.8% |
| Accurate 2495 | <<locked>> | 98% | 48,718 psi | 86% | 2595 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 49,516 psi | 88% | 2621 fps | 99.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 48,501 psi | 86% | 2628 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 49,168 psi | 87% | 2477 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 49,574 psi | 88% | 2493 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 94% | 49,400 psi | 87% | 2618 fps | 97.8% |
| ADI AR 2207 | <<locked>> | 82% | 49,763 psi | 88% | 2503 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 50,372 psi | 89% | 2608 fps | 97.2% |
| ADI AR 2219 | <<locked>> | 86% | 51,126 psi | 90% | 2621 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 49,110 psi | 87% | 2585 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 94% | 50,604 psi | 89% | 2628 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 49,734 psi | 88% | 2674 fps | 98.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 48,950 psi | 87% | 2697 fps | 96.5% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 48,428 psi | 86% | 2625 fps | 98.4% |
| Alliant Reloder-10x | <<locked>> | 88% | 50,589 psi | 89% | 2569 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 49,850 psi | 88% | 2644 fps | 97.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 43,308 psi | 77% | 2602 fps | 96.6% |
| Alliant Reloder-7 | <<locked>> | 82% | 50,749 psi | 90% | 2516 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 50,792 psi | 90% | 2516 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 48,849 psi | 86% | 2625 fps | 96.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 48,240 psi | 85% | 2635 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 90% | 48,921 psi | 86% | 2539 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 94% | 50,212 psi | 89% | 2654 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 90% | 48,631 psi | 86% | 2680 fps | 97.1% |
| Hodgdon H322 | <<locked>> | 88% | 49,734 psi | 88% | 2602 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 50,676 psi | 90% | 2621 fps | 99.9% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 50,560 psi | 89% | 2641 fps | 96% |
| Hodgdon H4198 | <<locked>> | 82% | 50,836 psi | 90% | 2520 fps | 100% |
| Hodgdon H4895 | <<locked>> | 94% | 49,705 psi | 88% | 2631 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 51,053 psi | 90% | 2700 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,576 psi | 59% | 1572 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 48,182 psi | 85% | 2585 fps | 97.9% |
| IMR 3031 | <<locked>> | 94% | 47,834 psi | 85% | 2628 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 50,009 psi | 88% | 2598 fps | 97.4% |
| IMR 4198 | <<locked>> | 86% | 48,878 psi | 86% | 2500 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 51,024 psi | 90% | 2680 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 92% | 49,110 psi | 87% | 2585 fps | 98.7% |
| Lovex D073.4 | <<locked>> | 82% | 48,733 psi | 86% | 2579 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 88% | 48,515 psi | 86% | 2572 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 96% | 50,502 psi | 89% | 2648 fps | 99.8% |
| Lovex S060 | <<locked>> | 94% | 50,488 psi | 89% | 2559 fps | 97.9% |
| Lovex S062 | <<locked>> | 98% | 48,791 psi | 86% | 2595 fps | 98.8% |
| Norma 200 | <<locked>> | 84% | 50,473 psi | 89% | 2546 fps | 100% |
| Norma 201 | <<locked>> | 94% | 48,051 psi | 85% | 2569 fps | 98.6% |
| Norma 202 | <<locked>> | 94% | 48,066 psi | 85% | 2585 fps | 99.9% |
| Norma 203B | <<locked>> | 98% | 48,863 psi | 86% | 2635 fps | 97.7% |
| Ramshot Big Game | <<locked>> | 98% | 49,255 psi | 87% | 2654 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 92% | 48,225 psi | 85% | 2608 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 90% | 50,778 psi | 90% | 2589 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,591 psi | 59% | 1608 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 49,124 psi | 87% | 2582 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 48,878 psi | 86% | 2697 fps | 97.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 46,398 psi | 82% | 2677 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 92% | 49,182 psi | 87% | 2572 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 98% | 51,184 psi | 90% | 2608 fps | 99% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 44,614 psi | 79% | 2566 fps | 97.5% |
| Shooters World AR Plus | <<locked>> | 82% | 48,733 psi | 86% | 2579 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 96% | 50,502 psi | 89% | 2648 fps | 99.8% |
| Shooters World Precision | <<locked>> | 98% | 48,791 psi | 86% | 2595 fps | 98.8% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 49,168 psi | 87% | 2546 fps | 98.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 50,676 psi | 90% | 2277 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 48,240 psi | 85% | 2582 fps | 99.8% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 47,514 psi | 84% | 2635 fps | 97.2% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 48,747 psi | 86% | 2546 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 94% | 50,633 psi | 90% | 2608 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 50,981 psi | 90% | 2638 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 51,039 psi | 90% | 2539 fps | 99.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 49,995 psi | 88% | 2533 fps | 100% |
| Somchem S321 | <<locked>> | 90% | 49,951 psi | 88% | 2621 fps | 99% |
| Somchem S335 | <<locked>> | 94% | 49,603 psi | 88% | 2539 fps | 100% |
| Somchem S341 | <<locked>> | 94% | 49,937 psi | 88% | 2608 fps | 97.7% |
| Somchem S355ᴾ | <<locked>> | 100% | 46,093 psi | 81% | 2575 fps | 97.6% |
| Vihtavuori N120 | <<locked>> | 82% | 49,748 psi | 88% | 2457 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 50,879 psi | 90% | 2523 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 50,720 psi | 90% | 2536 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 49,545 psi | 88% | 2595 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 48,791 psi | 86% | 2569 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 44,382 psi | 78% | 2520 fps | 98.4% |
| Vihtavuori N530 | <<locked>> | 92% | 49,530 psi | 88% | 2585 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 98% | 50,067 psi | 89% | 2608 fps | 99.9% |
| Winchester 748 | <<locked>> | 92% | 47,805 psi | 85% | 2625 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 96% | 50,154 psi | 89% | 2644 fps | 98.4% |
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% | 34,287 psi | 61% | 2293 fps | 99.6% |
| Accurate 2200 | <<locked>> | 80% | 44,962 psi | 79% | 2523 fps | 95.8% |
| Accurate 2230 | <<locked>> | 80% | 44,846 psi | 79% | 2530 fps | 96.3% |
| Accurate 2460 | <<locked>> | 80% | 36,927 psi | 65% | 2369 fps | 98.3% |
| Accurate 2495 | <<locked>> | 80% | 26,440 psi | 47% | 2175 fps | 98.2% |
| Accurate 2520 | <<locked>> | 80% | 32,489 psi | 57% | 2313 fps | 96.7% |
| Accurate 4064 | <<locked>> | 82% | 26,716 psi | 47% | 2195 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 43,424 psi | 77% | 2388 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 80% | 43,816 psi | 77% | 2402 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 86% | 38,363 psi | 68% | 2421 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 46,789 psi | 83% | 2461 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 41,742 psi | 74% | 2464 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 41,713 psi | 74% | 2474 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 35,766 psi | 63% | 2343 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 31,531 psi | 56% | 2310 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 38,101 psi | 67% | 2461 fps | 95.8% |
| Alliant Power Pro 2000-MR | 49.2 gr | 94% | 45,556 psi | 81% | 2638 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 35,099 psi | 62% | 2382 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,421 psi | 70% | 2398 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 40,988 psi | 72% | 2493 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 98% | 40,335 psi | 71% | 2543 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 47,543 psi | 84% | 2470 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,800 psi | 74% | 2382 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 45,803 psi | 81% | 2572 fps | 95.7% |
| Bofors RP3 | <<locked>> | 92% | 36,608 psi | 65% | 2428 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,824 psi | 63% | 2300 fps | 96.3% |
| Hodgdon BL-C2 | <<locked>> | 82% | 33,025 psi | 58% | 2339 fps | 95.5% |
| Hodgdon CFE223 | 46.1 gr | 86% | 42,453 psi | 75% | 2569 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 38,130 psi | 67% | 2408 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 80% | 38,479 psi | 68% | 2421 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 98% | 47,210 psi | 83% | 2589 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 47,892 psi | 85% | 2474 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 84% | 36,114 psi | 64% | 2379 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 36,753 psi | 65% | 2438 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,569 psi | 43% | 1398 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 37,347 psi | 66% | 2388 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 30,197 psi | 53% | 2293 fps | 98.4% |
| IMR 4064 | <<locked>> | 92% | 41,321 psi | 73% | 2451 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 40,988 psi | 72% | 2382 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 39,233 psi | 69% | 2474 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 82% | 35,766 psi | 63% | 2343 fps | 95.7% |
| Lovex D073.4 | <<locked>> | 80% | 45,223 psi | 80% | 2523 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 36,695 psi | 65% | 2365 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 80% | 28,950 psi | 51% | 2241 fps | 95.2% |
| Lovex S060 | <<locked>> | 86% | 39,711 psi | 70% | 2375 fps | 95.4% |
| Lovex S062 | <<locked>> | 88% | 35,578 psi | 63% | 2359 fps | 95.8% |
| Norma 200 | <<locked>> | 80% | 44,527 psi | 79% | 2461 fps | 100% |
| Norma 201 | <<locked>> | 84% | 34,998 psi | 62% | 2329 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 30,734 psi | 54% | 2254 fps | 96.7% |
| Norma 203B | <<locked>> | 92% | 40,118 psi | 71% | 2484 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 92% | 40,393 psi | 71% | 2497 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 39,508 psi | 70% | 2451 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 84% | 41,829 psi | 74% | 2438 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,700 psi | 44% | 1434 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,782 psi | 67% | 2385 fps | 97.7% |
| ReloadSwiss RS 52 | 46.7 gr | 92% | 42,743 psi | 76% | 2589 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 33,228 psi | 59% | 2392 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 34,156 psi | 60% | 2297 fps | 97.5% |
| Rottweil R 902 | <<locked>> | 86% | 35,462 psi | 63% | 2333 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 94% | 36,535 psi | 65% | 2418 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 45,223 psi | 80% | 2523 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 28,950 psi | 51% | 2241 fps | 95.2% |
| Shooters World Precision | <<locked>> | 88% | 35,578 psi | 63% | 2359 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 40,045 psi | 71% | 2395 fps | 96.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 48,051 psi | 85% | 2244 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 42,105 psi | 74% | 2477 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 41,524 psi | 73% | 2526 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 40,219 psi | 71% | 2408 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 47,094 psi | 83% | 2552 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 39,436 psi | 70% | 2441 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,895 psi | 58% | 2224 fps | 97.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,542 psi | 47% | 2093 fps | 96.1% |
| Somchem S321 | <<locked>> | 80% | 35,389 psi | 63% | 2359 fps | 95.9% |
| Somchem S335 | <<locked>> | 80% | 32,213 psi | 57% | 2228 fps | 98% |
| Somchem S341 | <<locked>> | 88% | 40,553 psi | 72% | 2451 fps | 95.5% |
| Somchem S355 | <<locked>> | 94% | 38,029 psi | 67% | 2431 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 46,833 psi | 83% | 2418 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 37,536 psi | 66% | 2316 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 32,822 psi | 58% | 2238 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 80% | 27,688 psi | 49% | 2195 fps | 98.4% |
| Vihtavuori N140 | <<locked>> | 80% | 28,993 psi | 51% | 2195 fps | 96.4% |
| Vihtavuori N150 | <<locked>> | 90% | 32,024 psi | 57% | 2280 fps | 95% |
| Vihtavuori N530 | <<locked>> | 82% | 35,389 psi | 63% | 2333 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 27,775 psi | 49% | 2178 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 31,937 psi | 56% | 2313 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 38,319 psi | 68% | 2441 fps | 95.7% |
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 86 powders for 8 x 57 IS loaded with the .323 | 180gr | Sako Powerhead Blade. Hodgdon LEVERevolution delivers the highest muzzle velocity at 2,700 fps; across all powders the maximum-charge window runs from 1,572 fps to 2,700 fps. Accurate 4064 gives the best case fill at 100 %, and 86 of the 86 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.323" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, ADI AR 2208, Alliant Reloder- TS 15.5 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, Hodgdon CFE223 rank at the top here: for 8 x 57 IS with the .323 | 180gr | Sako Powerhead Blade 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.