Load Specifications
Load data in caliber 8 x 57 IS with .323 | 160gr | Hasler ARIETE bullet and 66 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester 748, Alliant Power Pro 1200-R and Accurate 2520.
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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 49,139 psi | 87% | 2608 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 50,241 psi | 89% | 2703 fps | 100% |
| Accurate 2460 | <<locked>> | 92% | 48,820 psi | 86% | 2710 fps | 99.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 44,657 psi | 79% | 2684 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 49,255 psi | 87% | 2756 fps | 98.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 41,495 psi | 73% | 2654 fps | 98.7% |
| Accurate LT-30 | <<locked>> | 88% | 50,198 psi | 89% | 2628 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 88% | 50,647 psi | 90% | 2641 fps | 99% |
| ADI AR 2206H | <<locked>> | 98% | 49,269 psi | 87% | 2746 fps | 96.1% |
| ADI AR 2207 | <<locked>> | 86% | 50,198 psi | 89% | 2661 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 48,312 psi | 85% | 2723 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 96% | 49,458 psi | 87% | 2723 fps | 97.5% |
| Alliant AR-Comp | <<locked>> | 98% | 49,893 psi | 88% | 2776 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 49,951 psi | 88% | 2818 fps | 97.1% |
| Alliant Reloder-10x | <<locked>> | 92% | 50,923 psi | 90% | 2726 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 84% | 48,414 psi | 86% | 2628 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 48,689 psi | 86% | 2621 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 94% | 49,284 psi | 87% | 2674 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 98% | 50,125 psi | 89% | 2789 fps | 98.2% |
| Hodgdon H322 | <<locked>> | 92% | 49,980 psi | 88% | 2749 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 90% | 47,921 psi | 85% | 2720 fps | 99.2% |
| Hodgdon H4198 | <<locked>> | 84% | 48,863 psi | 86% | 2625 fps | 99.5% |
| Hodgdon H4895 | <<locked>> | 98% | 49,545 psi | 88% | 2759 fps | 96.8% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 47,674 psi | 84% | 2772 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,706 psi | 58% | 1647 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 48,530 psi | 86% | 2720 fps | 96.4% |
| IMR 3031ᴾ | <<locked>> | 100% | 50,589 psi | 89% | 2818 fps | 100% |
| IMR 4198 | <<locked>> | 90% | 49,197 psi | 87% | 2654 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 47,384 psi | 84% | 2753 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 96% | 49,458 psi | 87% | 2723 fps | 97.5% |
| Lovex D073.4 | <<locked>> | 86% | 49,124 psi | 87% | 2723 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 92% | 48,820 psi | 86% | 2713 fps | 98.2% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 50,227 psi | 89% | 2782 fps | 99% |
| Lovex S053 | <<locked>> | 82% | 50,763 psi | 90% | 2572 fps | 100% |
| Lovex S060 | <<locked>> | 96% | 48,153 psi | 85% | 2648 fps | 95.8% |
| Lovex S062ᴾ | <<locked>> | 100% | 45,339 psi | 80% | 2671 fps | 96.8% |
| Norma 200 | <<locked>> | 88% | 50,589 psi | 89% | 2700 fps | 100% |
| Norma 201 | <<locked>> | 98% | 47,906 psi | 85% | 2700 fps | 97.3% |
| Norma 202ᴾ | <<locked>> | 100% | 51,184 psi | 90% | 2772 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 96% | 48,356 psi | 85% | 2736 fps | 95.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,576 psi | 58% | 1683 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 49,487 psi | 87% | 2723 fps | 98.7% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 40,843 psi | 72% | 2674 fps | 96.2% |
| Rottweil R 901 | <<locked>> | 96% | 49,023 psi | 87% | 2707 fps | 99.1% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 48,167 psi | 85% | 2694 fps | 97.3% |
| Shooters World AR Plus | <<locked>> | 86% | 49,124 psi | 87% | 2723 fps | 98.7% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 50,227 psi | 89% | 2782 fps | 99% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 45,339 psi | 80% | 2671 fps | 96.8% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 50,169 psi | 89% | 2690 fps | 97.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 49,023 psi | 87% | 2398 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 48,718 psi | 86% | 2726 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 49,008 psi | 87% | 2694 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 48,428 psi | 86% | 2635 fps | 99.1% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 44,048 psi | 78% | 2579 fps | 99.2% |
| Somchem S321 | <<locked>> | 94% | 50,459 psi | 89% | 2762 fps | 97.9% |
| Somchem S335 | <<locked>> | 98% | 49,647 psi | 88% | 2674 fps | 99.7% |
| Somchem S341 | <<locked>> | 98% | 50,183 psi | 89% | 2740 fps | 96% |
| Vihtavuori N120 | <<locked>> | 86% | 50,256 psi | 89% | 2615 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 48,501 psi | 86% | 2635 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 50,879 psi | 90% | 2680 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 45,934 psi | 81% | 2690 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 48,602 psi | 86% | 2703 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 96% | 49,980 psi | 88% | 2723 fps | 97.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 46,659 psi | 82% | 2690 fps | 98.9% |
| Winchester 748 | <<locked>> | 98% | 51,097 psi | 90% | 2812 fps | 98.6% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 50,270 psi | 89% | 2776 fps | 96.9% |
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 1680 | <<locked>> | 80% | 45,977 psi | 81% | 2559 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 29,965 psi | 53% | 2323 fps | 97.6% |
| Accurate 2460 | <<locked>> | 80% | 32,053 psi | 57% | 2388 fps | 95.2% |
| Accurate 2495 | <<locked>> | 82% | 23,815 psi | 42% | 2228 fps | 95.5% |
| Accurate 2520 | 43.5 gr | 86% | 34,461 psi | 61% | 2484 fps | 95.6% |
| Accurate 4064 | <<locked>> | 90% | 29,718 psi | 53% | 2398 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 39,218 psi | 69% | 2441 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 80% | 39,581 psi | 70% | 2448 fps | 97% |
| ADI AR 2206H | <<locked>> | 96% | 46,456 psi | 82% | 2697 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 41,553 psi | 73% | 2530 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 36,796 psi | 65% | 2513 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 90% | 40,857 psi | 72% | 2569 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 27,702 psi | 49% | 2343 fps | 99.1% |
| Alliant Power Pro 1200-R | 42.2 gr | 88% | 43,424 psi | 77% | 2700 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 34,737 psi | 61% | 2441 fps | 99.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 42,888 psi | 76% | 2539 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 37,376 psi | 66% | 2425 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 38,754 psi | 69% | 2484 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 90% | 37,855 psi | 67% | 2569 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 33,634 psi | 59% | 2441 fps | 97.1% |
| Hodgdon H335 | <<locked>> | 80% | 33,750 psi | 60% | 2448 fps | 96% |
| Hodgdon H4198 | <<locked>> | 80% | 43,294 psi | 77% | 2530 fps | 98.9% |
| Hodgdon H4895 | <<locked>> | 94% | 43,642 psi | 77% | 2657 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 41,800 psi | 74% | 2661 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,888 psi | 42% | 1467 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 42,815 psi | 76% | 2618 fps | 95% |
| IMR 3031 | <<locked>> | 82% | 28,050 psi | 50% | 2356 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 36,492 psi | 65% | 2434 fps | 99.9% |
| IMR 4895 | <<locked>> | 98% | 44,251 psi | 78% | 2697 fps | 95% |
| IMR 8208 XBR | <<locked>> | 90% | 40,857 psi | 72% | 2569 fps | 95.4% |
| Lovex D073.4 | <<locked>> | 80% | 39,842 psi | 70% | 2559 fps | 96.9% |
| Lovex D073.5 | <<locked>> | 84% | 36,840 psi | 65% | 2497 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 88% | 32,822 psi | 58% | 2457 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 47,761 psi | 84% | 2530 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 45,397 psi | 80% | 2602 fps | 95.1% |
| Lovex S062 | <<locked>> | 96% | 39,885 psi | 71% | 2569 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 39,334 psi | 70% | 2516 fps | 100% |
| Norma 201 | <<locked>> | 92% | 39,624 psi | 70% | 2549 fps | 95.2% |
| Norma 202 | <<locked>> | 86% | 32,561 psi | 58% | 2421 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 94% | 45,324 psi | 80% | 2684 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,917 psi | 42% | 1503 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 35,563 psi | 63% | 2461 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 38,029 psi | 67% | 2608 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 82% | 31,952 psi | 56% | 2369 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 94% | 39,842 psi | 70% | 2546 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 39,842 psi | 70% | 2559 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 32,822 psi | 58% | 2457 fps | 95% |
| Shooters World Precision | <<locked>> | 96% | 39,885 psi | 71% | 2569 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 43,772 psi | 77% | 2582 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 43,976 psi | 78% | 2326 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 37,101 psi | 66% | 2510 fps | 97% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,418 psi | 63% | 2451 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 33,083 psi | 58% | 2346 fps | 95.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 28,297 psi | 50% | 2247 fps | 95% |
| Somchem S321 | <<locked>> | 86% | 38,101 psi | 67% | 2539 fps | 95% |
| Somchem S335 | <<locked>> | 82% | 30,226 psi | 53% | 2300 fps | 95.7% |
| Somchem S341 | <<locked>> | 96% | 46,949 psi | 83% | 2684 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 41,713 psi | 74% | 2490 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 33,315 psi | 59% | 2359 fps | 99.1% |
| Vihtavuori N133 | <<locked>> | 80% | 28,921 psi | 51% | 2267 fps | 97.1% |
| Vihtavuori N135 | <<locked>> | 80% | 23,946 psi | 42% | 2205 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 86% | 30,806 psi | 54% | 2359 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 90% | 40,930 psi | 72% | 2566 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 88% | 31,676 psi | 56% | 2392 fps | 95% |
| Winchester 748 | 44.2 gr | 88% | 36,579 psi | 65% | 2539 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 96% | 43,961 psi | 78% | 2671 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 66 powders for 8 x 57 IS loaded with the .323 | 160gr | Hasler ARIETE. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,818 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,818 fps. Accurate 2495 gives the best case fill at 100 %, and 66 of the 66 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.323" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Hodgdon LEVERevolution 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. Winchester 748, Alliant Power Pro 1200-R, Accurate 2520 rank at the top here: for 8 x 57 IS with the .323 | 160gr | Hasler ARIETE 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.