Load Specifications
Load data in caliber 8 x 57 IS with .323 | 150gr | Speer Hot-Cor bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Hodgdon LEVERevolution and IMR 3031.
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 2015 | <<locked>> | 92% | 50,270 psi | 89% | 2841 fps | 100% |
| Accurate 2460 | <<locked>> | 88% | 48,573 psi | 86% | 2844 fps | 99.3% |
| Accurate 2495 | <<locked>> | 98% | 49,313 psi | 87% | 2884 fps | 100% |
| Accurate 2520 | <<locked>> | 92% | 49,487 psi | 87% | 2897 fps | 99.2% |
| Accurate 4064ᴾ | <<locked>> | 100% | 48,646 psi | 86% | 2904 fps | 99.7% |
| Accurate LT-30 | <<locked>> | 84% | 48,921 psi | 86% | 2753 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 84% | 49,327 psi | 87% | 2766 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 94% | 49,240 psi | 87% | 2890 fps | 96.5% |
| ADI AR 2207 | <<locked>> | 82% | 49,443 psi | 87% | 2789 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 50,198 psi | 89% | 2881 fps | 95.9% |
| ADI AR 2219 | <<locked>> | 86% | 50,865 psi | 90% | 2907 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 92% | 49,037 psi | 87% | 2858 fps | 97.7% |
| Alliant AR-Comp | <<locked>> | 94% | 50,227 psi | 89% | 2917 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 49,690 psi | 88% | 2959 fps | 97.4% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 48,327 psi | 85% | 2897 fps | 97.4% |
| Alliant Reloder-10x | <<locked>> | 88% | 50,415 psi | 89% | 2858 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 98% | 49,588 psi | 88% | 2917 fps | 96% |
| Alliant Reloder-7 | <<locked>> | 82% | 50,662 psi | 90% | 2802 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 50,575 psi | 89% | 2789 fps | 100% |
| Bofors RP3ᴾ | <<locked>> | 100% | 48,443 psi | 86% | 2910 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 90% | 48,602 psi | 86% | 2805 fps | 98.2% |
| Hodgdon BL-C2 | <<locked>> | 94% | 50,140 psi | 89% | 2933 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 88% | 49,356 psi | 87% | 2881 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 88% | 50,488 psi | 89% | 2904 fps | 99.6% |
| Hodgdon H4198 | <<locked>> | 82% | 50,589 psi | 89% | 2799 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 94% | 49,559 psi | 88% | 2904 fps | 97.2% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 51,097 psi | 90% | 2979 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,562 psi | 59% | 1775 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 48,283 psi | 85% | 2861 fps | 96.8% |
| IMR 3031 | <<locked>> | 96% | 50,821 psi | 90% | 2963 fps | 100% |
| IMR 4064 | <<locked>> | 98% | 49,545 psi | 88% | 2861 fps | 96% |
| IMR 4198 | <<locked>> | 86% | 48,646 psi | 86% | 2785 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 50,705 psi | 90% | 2953 fps | 97% |
| IMR 8208 XBR | <<locked>> | 92% | 49,037 psi | 87% | 2858 fps | 97.7% |
| Lovex D073.4 | <<locked>> | 82% | 48,631 psi | 86% | 2854 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 88% | 48,805 psi | 86% | 2851 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 96% | 50,749 psi | 90% | 2930 fps | 99.3% |
| Lovex S060 | <<locked>> | 94% | 50,517 psi | 89% | 2835 fps | 96.8% |
| Lovex S062 | <<locked>> | 98% | 48,718 psi | 86% | 2867 fps | 97.8% |
| Norma 200 | <<locked>> | 84% | 50,705 psi | 90% | 2838 fps | 100% |
| Norma 201 | <<locked>> | 94% | 48,182 psi | 85% | 2844 fps | 97.7% |
| Norma 202 | <<locked>> | 94% | 48,240 psi | 85% | 2864 fps | 99.4% |
| Norma 203B | <<locked>> | 98% | 48,602 psi | 86% | 2904 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 98% | 49,226 psi | 87% | 2923 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 92% | 48,182 psi | 85% | 2874 fps | 96.2% |
| Ramshot X-Terminator | <<locked>> | 90% | 50,865 psi | 90% | 2861 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,504 psi | 59% | 1814 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 49,081 psi | 87% | 2858 fps | 98.9% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 46,354 psi | 82% | 2943 fps | 98.4% |
| Rottweil R 901 | <<locked>> | 92% | 49,458 psi | 87% | 2851 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 96% | 48,327 psi | 85% | 2838 fps | 97.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 44,672 psi | 79% | 2831 fps | 96.3% |
| Shooters World AR Plus | <<locked>> | 82% | 48,631 psi | 86% | 2854 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 96% | 50,749 psi | 90% | 2930 fps | 99.3% |
| Shooters World Precision | <<locked>> | 98% | 48,718 psi | 86% | 2867 fps | 97.8% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 49,197 psi | 87% | 2818 fps | 97.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 50,299 psi | 89% | 2546 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 48,240 psi | 85% | 2858 fps | 99.3% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 47,456 psi | 84% | 2900 fps | 95.9% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 48,341 psi | 85% | 2825 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 51,039 psi | 90% | 2913 fps | 96.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 50,981 psi | 90% | 2818 fps | 99.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 49,719 psi | 88% | 2805 fps | 99.9% |
| Somchem S321 | <<locked>> | 90% | 49,922 psi | 88% | 2894 fps | 98.2% |
| Somchem S335 | <<locked>> | 94% | 49,647 psi | 88% | 2815 fps | 99.8% |
| Somchem S341 | <<locked>> | 94% | 49,937 psi | 88% | 2877 fps | 96.5% |
| Somchem S355ᴾ | <<locked>> | 100% | 46,021 psi | 81% | 2841 fps | 96.4% |
| Vihtavuori N120 | <<locked>> | 82% | 49,429 psi | 87% | 2740 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 50,894 psi | 90% | 2808 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 50,459 psi | 89% | 2815 fps | 100% |
| Vihtavuori N135 | <<locked>> | 98% | 49,603 psi | 88% | 2881 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 48,718 psi | 86% | 2844 fps | 99.6% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 44,295 psi | 78% | 2779 fps | 97.3% |
| Vihtavuori N530 | <<locked>> | 92% | 49,530 psi | 88% | 2861 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 98% | 49,995 psi | 88% | 2881 fps | 99.5% |
| Winchester 748 | <<locked>> | 94% | 51,184 psi | 90% | 2956 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 96% | 50,140 psi | 89% | 2917 fps | 97.3% |
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% | 34,447 psi | 61% | 2543 fps | 98.9% |
| Accurate 2460 | <<locked>> | 80% | 37,202 psi | 66% | 2625 fps | 97.2% |
| Accurate 2495 | <<locked>> | 80% | 26,992 psi | 48% | 2415 fps | 97.1% |
| Accurate 2520 | <<locked>> | 80% | 32,663 psi | 58% | 2556 fps | 95.2% |
| Accurate 4064 | <<locked>> | 84% | 29,167 psi | 52% | 2487 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 43,120 psi | 76% | 2651 fps | 99.4% |
| Accurate LT-32 | <<locked>> | 80% | 43,482 psi | 77% | 2661 fps | 98.2% |
| ADI AR 2206H | <<locked>> | 90% | 43,511 psi | 77% | 2782 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 46,586 psi | 82% | 2743 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 47,137 psi | 83% | 2825 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 41,553 psi | 73% | 2740 fps | 99.1% |
| ADI Benchmark 8208 | <<locked>> | 86% | 40,640 psi | 72% | 2697 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 31,662 psi | 56% | 2562 fps | 99.9% |
| Alliant Power Pro 1200-R | 45.5 gr | 82% | 40,799 psi | 72% | 2782 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 40,030 psi | 71% | 2736 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,595 psi | 70% | 2664 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 46,528 psi | 82% | 2861 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 47,558 psi | 84% | 2753 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,640 psi | 74% | 2638 fps | 99.4% |
| Bofors RP3 | <<locked>> | 94% | 39,421 psi | 70% | 2736 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 38,261 psi | 68% | 2602 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 86% | 38,174 psi | 67% | 2703 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 37,956 psi | 67% | 2664 fps | 98.5% |
| Hodgdon H335 | <<locked>> | 80% | 38,508 psi | 68% | 2677 fps | 97.7% |
| Hodgdon H4198 | <<locked>> | 80% | 47,471 psi | 84% | 2746 fps | 99.6% |
| Hodgdon H4895 | <<locked>> | 88% | 41,075 psi | 73% | 2740 fps | 95.1% |
| Hodgdon LEVERevolution | 53.3 gr | 92% | 41,930 psi | 74% | 2805 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,685 psi | 44% | 1581 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 42,322 psi | 75% | 2746 fps | 95.3% |
| IMR 3031 | 42.9 gr | 80% | 30,327 psi | 54% | 2536 fps | 97.1% |
| IMR 4064 | <<locked>> | 96% | 46,775 psi | 83% | 2812 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 40,683 psi | 72% | 2648 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 44,643 psi | 79% | 2841 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 86% | 40,640 psi | 72% | 2697 fps | 95.7% |
| Lovex D073.4 | <<locked>> | 80% | 45,252 psi | 80% | 2795 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 80% | 36,912 psi | 65% | 2618 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 84% | 33,605 psi | 59% | 2592 fps | 95.5% |
| Lovex S060 | <<locked>> | 90% | 44,701 psi | 79% | 2726 fps | 95.4% |
| Lovex S062 | <<locked>> | 90% | 37,869 psi | 67% | 2654 fps | 95% |
| Norma 200 | <<locked>> | 80% | 44,657 psi | 79% | 2740 fps | 100% |
| Norma 201 | <<locked>> | 88% | 39,871 psi | 70% | 2680 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 30,748 psi | 54% | 2490 fps | 95.2% |
| Norma 203B | <<locked>> | 96% | 45,643 psi | 81% | 2848 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 96% | 46,050 psi | 81% | 2864 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 90% | 45,034 psi | 80% | 2818 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 86% | 44,585 psi | 79% | 2749 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,758 psi | 44% | 1621 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,710 psi | 67% | 2635 fps | 96.4% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 38,058 psi | 67% | 2756 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 34,447 psi | 61% | 2543 fps | 96.3% |
| Rottweil R 902 | <<locked>> | 90% | 40,190 psi | 71% | 2680 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 98% | 42,047 psi | 74% | 2779 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 45,252 psi | 80% | 2795 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 33,605 psi | 59% | 2592 fps | 95.5% |
| Shooters World Precision | <<locked>> | 90% | 37,869 psi | 67% | 2654 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 40,132 psi | 71% | 2648 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 47,761 psi | 84% | 2510 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 42,076 psi | 74% | 2743 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 44,367 psi | 78% | 2838 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 39,871 psi | 70% | 2671 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 44,875 psi | 79% | 2802 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,909 psi | 58% | 2461 fps | 96% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 28,413 psi | 50% | 2365 fps | 95.4% |
| Somchem S321 | <<locked>> | 82% | 38,014 psi | 67% | 2664 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 32,401 psi | 57% | 2467 fps | 96.8% |
| Somchem S341 | <<locked>> | 92% | 46,586 psi | 82% | 2822 fps | 95.7% |
| Somchem S355 | <<locked>> | 98% | 43,395 psi | 77% | 2792 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 46,615 psi | 82% | 2697 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 37,434 psi | 66% | 2569 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 32,735 psi | 58% | 2477 fps | 98.4% |
| Vihtavuori N135 | <<locked>> | 80% | 27,746 psi | 49% | 2425 fps | 97.2% |
| Vihtavuori N140 | <<locked>> | 82% | 31,125 psi | 55% | 2480 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 94% | 36,637 psi | 65% | 2625 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 84% | 38,014 psi | 67% | 2638 fps | 95% |
| Vihtavuori N540 | <<locked>> | 84% | 31,850 psi | 56% | 2513 fps | 95.4% |
| Winchester 748 | <<locked>> | 84% | 36,622 psi | 65% | 2667 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 90% | 40,973 psi | 72% | 2746 fps | 95% |
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 | 150gr | Speer Hot-Cor. Hodgdon LEVERevolution delivers the highest muzzle velocity at 2,979 fps; across all powders the maximum-charge window runs from 1,775 fps to 2,979 fps. Accurate 4064 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 58–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.323" calls for a 1:6.0 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 1200-R, Hodgdon LEVERevolution, IMR 3031 rank at the top here: for 8 x 57 IS with the .323 | 150gr | Speer Hot-Cor they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Power Pro 2000-MR, Alliant Reloder-17, Hodgdon H380 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.