Load Specifications
Load data in caliber 8 x 57 IS with .323 | 175gr | Sierra Pro-Hunter bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 52, Alliant Power Pro 2000-MR and Hodgdon LEVERevolution.
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% | 48,312 psi | 85% | 2589 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 49,530 psi | 88% | 2644 fps | 99.9% |
| Accurate 2495 | <<locked>> | 96% | 50,720 psi | 90% | 2677 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 50,444 psi | 89% | 2694 fps | 99.9% |
| Accurate 4064 | <<locked>> | 98% | 50,546 psi | 89% | 2713 fps | 100% |
| Accurate LT-30 | <<locked>> | 82% | 49,037 psi | 87% | 2539 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 49,414 psi | 87% | 2556 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 92% | 50,198 psi | 89% | 2694 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 98% | 51,169 psi | 90% | 2687 fps | 97.6% |
| ADI AR 2219 | <<locked>> | 82% | 48,269 psi | 85% | 2641 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 49,632 psi | 88% | 2657 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 90% | 48,457 psi | 86% | 2657 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 50,676 psi | 90% | 2753 fps | 98.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 49,255 psi | 87% | 2776 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 49,559 psi | 88% | 2703 fps | 98.8% |
| Alliant Reloder-10x | <<locked>> | 84% | 48,225 psi | 85% | 2595 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 50,676 psi | 90% | 2723 fps | 97.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 46,876 psi | 83% | 2736 fps | 97.8% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 50,720 psi | 90% | 2579 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 49,501 psi | 88% | 2697 fps | 96.9% |
| Bofors RP3 | <<locked>> | 98% | 49,487 psi | 87% | 2713 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 49,255 psi | 87% | 2608 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 90% | 47,964 psi | 85% | 2680 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 88% | 49,400 psi | 87% | 2759 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 86% | 50,386 psi | 89% | 2674 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 51,111 psi | 90% | 2690 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 48,211 psi | 85% | 2667 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 92% | 50,531 psi | 89% | 2707 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 48,660 psi | 86% | 2726 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,127 psi | 60% | 1631 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 48,776 psi | 86% | 2657 fps | 98.3% |
| IMR 3031 | <<locked>> | 92% | 49,226 psi | 87% | 2707 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 50,488 psi | 89% | 2671 fps | 97.7% |
| IMR 4198 | <<locked>> | 84% | 49,298 psi | 87% | 2569 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 48,892 psi | 86% | 2707 fps | 98% |
| IMR 8208 XBR | <<locked>> | 90% | 49,632 psi | 88% | 2657 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 86% | 49,313 psi | 87% | 2644 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 92% | 48,515 psi | 86% | 2677 fps | 99.7% |
| Lovex S060 | <<locked>> | 92% | 51,097 psi | 90% | 2638 fps | 98.2% |
| Lovex S062 | <<locked>> | 96% | 49,603 psi | 88% | 2671 fps | 99% |
| Norma 201 | <<locked>> | 92% | 48,921 psi | 86% | 2648 fps | 98.9% |
| Norma 202 | <<locked>> | 92% | 49,168 psi | 87% | 2661 fps | 99.9% |
| Norma 203B | <<locked>> | 96% | 49,777 psi | 88% | 2710 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 96% | 49,966 psi | 88% | 2730 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 90% | 48,936 psi | 87% | 2680 fps | 97.8% |
| Ramshot X-Terminator | <<locked>> | 88% | 51,097 psi | 90% | 2657 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,214 psi | 60% | 1670 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 49,559 psi | 88% | 2651 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 49,995 psi | 88% | 2779 fps | 97.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 50,096 psi | 89% | 2808 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 90% | 50,415 psi | 89% | 2648 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 94% | 49,385 psi | 87% | 2644 fps | 98.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 49,342 psi | 87% | 2700 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 92% | 48,515 psi | 86% | 2677 fps | 99.7% |
| Shooters World Precision | <<locked>> | 96% | 49,603 psi | 88% | 2671 fps | 99% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 49,647 psi | 88% | 2618 fps | 98.7% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 48,820 psi | 86% | 2651 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 48,312 psi | 85% | 2710 fps | 97.7% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 49,023 psi | 87% | 2612 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 48,602 psi | 86% | 2664 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 48,312 psi | 85% | 2566 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 50,734 psi | 90% | 2605 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 50,531 psi | 89% | 2690 fps | 99.3% |
| Somchem S335 | <<locked>> | 92% | 50,256 psi | 89% | 2608 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 50,647 psi | 90% | 2684 fps | 98% |
| Somchem S355ᴾ | <<locked>> | 100% | 50,328 psi | 89% | 2707 fps | 98.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,172 psi | 64% | 2526 fps | 96.3% |
| Vihtavuori N130 | <<locked>> | 86% | 48,399 psi | 86% | 2549 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 51,111 psi | 90% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 51,097 psi | 90% | 2674 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 49,501 psi | 88% | 2641 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 48,646 psi | 86% | 2644 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 90% | 50,256 psi | 89% | 2661 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 96% | 50,879 psi | 90% | 2680 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 44,541 psi | 79% | 2582 fps | 97.2% |
| Winchester 748 | <<locked>> | 90% | 48,805 psi | 86% | 2700 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 92% | 47,979 psi | 85% | 2674 fps | 98.2% |
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% | 37,550 psi | 66% | 2408 fps | 99.9% |
| Accurate 2460 | <<locked>> | 80% | 40,625 psi | 72% | 2493 fps | 99.1% |
| Accurate 2495 | <<locked>> | 80% | 29,979 psi | 53% | 2303 fps | 99.2% |
| Accurate 2520 | <<locked>> | 80% | 35,737 psi | 63% | 2434 fps | 97.8% |
| Accurate 4064 | <<locked>> | 80% | 28,384 psi | 50% | 2277 fps | 96.5% |
| Accurate LT-30 | <<locked>> | 80% | 46,209 psi | 82% | 2497 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 46,514 psi | 82% | 2510 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 84% | 39,160 psi | 69% | 2493 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 92% | 42,627 psi | 75% | 2539 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 45,078 psi | 80% | 2592 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,303 psi | 64% | 2408 fps | 96% |
| Alliant AR-Comp | <<locked>> | 80% | 34,838 psi | 62% | 2431 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 41,539 psi | 73% | 2589 fps | 97% |
| Alliant Power Pro 2000-MR | 50.9 gr | 90% | 43,294 psi | 77% | 2657 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 36,201 psi | 64% | 2457 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,627 psi | 75% | 2507 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 39,465 psi | 70% | 2520 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 94% | 38,609 psi | 68% | 2569 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 44,831 psi | 79% | 2490 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 43,337 psi | 77% | 2589 fps | 95.4% |
| Bofors RP3 | <<locked>> | 88% | 35,534 psi | 63% | 2457 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,638 psi | 68% | 2415 fps | 97.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,026 psi | 60% | 2415 fps | 96% |
| Hodgdon CFE223 | <<locked>> | 82% | 40,118 psi | 71% | 2582 fps | 95% |
| Hodgdon H322 | <<locked>> | 80% | 41,321 psi | 73% | 2523 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 80% | 41,727 psi | 74% | 2536 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 94% | 45,107 psi | 80% | 2615 fps | 95% |
| Hodgdon H4895 | <<locked>> | 82% | 36,883 psi | 65% | 2451 fps | 95.5% |
| Hodgdon LEVERevolution | 46.5 gr | 84% | 35,027 psi | 62% | 2457 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,266 psi | 45% | 1457 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 37,971 psi | 67% | 2457 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 33,141 psi | 59% | 2411 fps | 99.2% |
| IMR 4064 | <<locked>> | 88% | 39,465 psi | 70% | 2474 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 43,830 psi | 77% | 2484 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 37,753 psi | 67% | 2497 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 36,303 psi | 64% | 2408 fps | 96% |
| Lovex D073.5 | <<locked>> | 80% | 40,219 psi | 71% | 2490 fps | 98.1% |
| Lovex D073.6 | <<locked>> | 80% | 32,242 psi | 57% | 2365 fps | 96.7% |
| Lovex S060 | <<locked>> | 82% | 37,782 psi | 67% | 2395 fps | 95.1% |
| Lovex S062 | <<locked>> | 84% | 34,243 psi | 61% | 2379 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 33,794 psi | 60% | 2352 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 33,533 psi | 59% | 2369 fps | 97.8% |
| Norma 203B | <<locked>> | 88% | 38,711 psi | 68% | 2510 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 90% | 41,162 psi | 73% | 2572 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 40,132 psi | 71% | 2520 fps | 95.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,552 psi | 70% | 2454 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,440 psi | 45% | 1493 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,944 psi | 72% | 2500 fps | 98.6% |
| ReloadSwiss RS 52 | 48.2 gr | 88% | 40,828 psi | 72% | 2612 fps | 95.3% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 31,937 psi | 56% | 2415 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 37,347 psi | 66% | 2415 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 82% | 34,142 psi | 60% | 2352 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 90% | 35,476 psi | 63% | 2444 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,242 psi | 57% | 2365 fps | 96.7% |
| Shooters World Precision | <<locked>> | 84% | 34,243 psi | 61% | 2379 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 43,221 psi | 76% | 2510 fps | 97.5% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 45,498 psi | 80% | 2595 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 39,827 psi | 70% | 2552 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 43,279 psi | 77% | 2520 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 40,074 psi | 71% | 2510 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,534 psi | 63% | 2333 fps | 98.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,892 psi | 51% | 2201 fps | 97.3% |
| Somchem S321 | <<locked>> | 80% | 38,783 psi | 69% | 2484 fps | 97.2% |
| Somchem S335 | <<locked>> | 80% | 34,983 psi | 62% | 2339 fps | 98.8% |
| Somchem S341 | <<locked>> | 84% | 38,537 psi | 68% | 2467 fps | 95.1% |
| Somchem S355 | <<locked>> | 90% | 36,811 psi | 65% | 2457 fps | 95.4% |
| Somchem S365 | <<locked>> | 98% | 33,881 psi | 60% | 2470 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 40,393 psi | 71% | 2421 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,505 psi | 63% | 2343 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 80% | 30,618 psi | 54% | 2310 fps | 99.2% |
| Vihtavuori N140 | <<locked>> | 80% | 31,807 psi | 56% | 2313 fps | 97.6% |
| Vihtavuori N150 | <<locked>> | 88% | 32,982 psi | 58% | 2356 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 36,158 psi | 64% | 2402 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 80% | 30,560 psi | 54% | 2293 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 39,044 psi | 69% | 2474 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 34,780 psi | 61% | 2434 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 36,651 psi | 65% | 2457 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 77 powders for 8 x 57 IS loaded with the .323 | 175gr | Sierra Pro-Hunter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,808 fps; across all powders the maximum-charge window runs from 1,631 fps to 2,808 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 77 of the 77 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 175.0 gr projectile in 0.323" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-17, Hodgdon TrailBoss, ReloadSwiss RS 14 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 52, Alliant Power Pro 2000-MR, Hodgdon LEVERevolution rank at the top here: for 8 x 57 IS with the .323 | 175gr | Sierra Pro-Hunter 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.