Load Specifications
Load data in caliber 8 x 57 IS with .323 | 145gr | Brenneke TIG nature bullet and 65 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon BL-C2, Hodgdon H335 and Alliant AR-Comp.
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% | 50,343 psi | 89% | 2802 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 48,544 psi | 86% | 2854 fps | 100% |
| Accurate 2460 | <<locked>> | 92% | 50,502 psi | 89% | 2913 fps | 99.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 46,296 psi | 82% | 2881 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 51,068 psi | 90% | 2959 fps | 99% |
| Accurate 4064ᴾ | <<locked>> | 100% | 42,989 psi | 76% | 2848 fps | 98.7% |
| Accurate LT-30 | <<locked>> | 86% | 48,240 psi | 85% | 2772 fps | 99.6% |
| Accurate LT-32 | <<locked>> | 86% | 48,646 psi | 86% | 2785 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 98% | 50,981 psi | 90% | 2953 fps | 96.2% |
| ADI AR 2207 | <<locked>> | 84% | 48,298 psi | 85% | 2815 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 49,835 psi | 88% | 2927 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 96% | 50,807 psi | 90% | 2920 fps | 97.5% |
| Alliant AR-Comp | <<locked>> | 96% | 48,457 psi | 86% | 2936 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 47,993 psi | 85% | 2966 fps | 96.4% |
| Alliant Reloder-10x | <<locked>> | 90% | 49,023 psi | 87% | 2877 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 84% | 49,719 psi | 88% | 2825 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 49,792 psi | 88% | 2812 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 94% | 50,705 psi | 90% | 2874 fps | 98% |
| Hodgdon BL-C2 | <<locked>> | 96% | 48,588 psi | 86% | 2943 fps | 97.7% |
| Hodgdon H322 | <<locked>> | 90% | 48,298 psi | 85% | 2900 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 90% | 49,255 psi | 87% | 2920 fps | 99.2% |
| Hodgdon H4198 | <<locked>> | 84% | 50,140 psi | 89% | 2825 fps | 99.5% |
| Hodgdon H4895 | <<locked>> | 96% | 47,979 psi | 85% | 2910 fps | 96.2% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 49,327 psi | 87% | 2979 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,779 psi | 58% | 1781 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 49,951 psi | 88% | 2920 fps | 96.5% |
| IMR 3031 | <<locked>> | 98% | 48,892 psi | 86% | 2972 fps | 99.9% |
| IMR 4198 | <<locked>> | 90% | 50,589 psi | 89% | 2858 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 49,168 psi | 87% | 2959 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 96% | 50,807 psi | 90% | 2920 fps | 97.5% |
| Lovex D073.4 | <<locked>> | 86% | 50,937 psi | 90% | 2930 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 92% | 50,531 psi | 89% | 2913 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 98% | 48,530 psi | 86% | 2930 fps | 98.6% |
| Lovex S060 | <<locked>> | 96% | 49,414 psi | 87% | 2844 fps | 95.8% |
| Lovex S062ᴾ | <<locked>> | 100% | 46,833 psi | 83% | 2871 fps | 96.8% |
| Norma 200 | <<locked>> | 86% | 48,921 psi | 86% | 2854 fps | 100% |
| Norma 201 | <<locked>> | 98% | 49,588 psi | 88% | 2904 fps | 97.3% |
| Norma 202 | <<locked>> | 98% | 49,545 psi | 88% | 2923 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 96% | 50,024 psi | 88% | 2940 fps | 95.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,590 psi | 58% | 1821 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 51,155 psi | 90% | 2927 fps | 98.7% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 42,134 psi | 74% | 2871 fps | 96.3% |
| Rottweil R 901 | <<locked>> | 96% | 50,473 psi | 89% | 2907 fps | 99.1% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 49,835 psi | 88% | 2897 fps | 97.3% |
| Shooters World AR Plus | <<locked>> | 86% | 50,937 psi | 90% | 2930 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 98% | 48,530 psi | 86% | 2930 fps | 98.6% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 46,833 psi | 83% | 2871 fps | 96.8% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 48,153 psi | 85% | 2831 fps | 96.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 49,850 psi | 88% | 2579 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 50,372 psi | 89% | 2933 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 50,111 psi | 89% | 2894 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 49,501 psi | 88% | 2920 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 49,559 psi | 88% | 2828 fps | 99.1% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 45,513 psi | 80% | 2772 fps | 99.3% |
| Somchem S321 | <<locked>> | 92% | 48,428 psi | 86% | 2904 fps | 97.3% |
| Somchem S335 | <<locked>> | 96% | 48,095 psi | 85% | 2825 fps | 99.5% |
| Vihtavuori N120 | <<locked>> | 84% | 48,356 psi | 85% | 2766 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 49,530 psi | 88% | 2825 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 49,008 psi | 87% | 2828 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 47,630 psi | 84% | 2890 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 50,227 psi | 89% | 2904 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 94% | 48,138 psi | 85% | 2867 fps | 97% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 48,414 psi | 86% | 2890 fps | 98.9% |
| Winchester 748 | <<locked>> | 96% | 49,458 psi | 87% | 2963 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 98% | 48,544 psi | 86% | 2923 fps | 96.3% |
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 1680 | <<locked>> | 80% | 47,123 psi | 83% | 2749 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 30,806 psi | 54% | 2493 fps | 97.5% |
| Accurate 2460 | <<locked>> | 80% | 33,098 psi | 59% | 2566 fps | 95.1% |
| Accurate 2495 | <<locked>> | 82% | 24,714 psi | 44% | 2392 fps | 95.4% |
| Accurate 2520 | <<locked>> | 86% | 35,766 psi | 63% | 2667 fps | 95.6% |
| Accurate 4064 | <<locked>> | 90% | 30,835 psi | 55% | 2575 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 39,972 psi | 71% | 2621 fps | 98.5% |
| Accurate LT-32 | <<locked>> | 80% | 40,335 psi | 71% | 2628 fps | 96.9% |
| ADI AR 2206H | <<locked>> | 96% | 47,747 psi | 84% | 2894 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 42,554 psi | 75% | 2720 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 37,739 psi | 67% | 2697 fps | 97.9% |
| ADI Benchmark 8208 | <<locked>> | 90% | 41,945 psi | 74% | 2756 fps | 95.4% |
| Alliant AR-Comp | 41.3 gr | 80% | 28,340 psi | 50% | 2510 fps | 99% |
| Alliant Power Pro 1200-R | <<locked>> | 88% | 45,020 psi | 80% | 2910 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,766 psi | 63% | 2628 fps | 99.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 43,758 psi | 77% | 2726 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 38,290 psi | 68% | 2605 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 39,639 psi | 70% | 2664 fps | 95.4% |
| Hodgdon BL-C2 | 51.2 gr | 90% | 39,334 psi | 70% | 2762 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 34,330 psi | 61% | 2618 fps | 96.9% |
| Hodgdon H335 | 45.6 gr | 80% | 34,751 psi | 61% | 2628 fps | 96% |
| Hodgdon H4198 | <<locked>> | 80% | 44,135 psi | 78% | 2720 fps | 98.8% |
| Hodgdon H4895 | <<locked>> | 94% | 45,165 psi | 80% | 2858 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 43,279 psi | 77% | 2861 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,091 psi | 43% | 1591 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 44,005 psi | 78% | 2808 fps | 95% |
| IMR 3031 | <<locked>> | 82% | 28,964 psi | 51% | 2533 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 37,420 psi | 66% | 2621 fps | 99.9% |
| IMR 4895 | <<locked>> | 98% | 45,963 psi | 81% | 2900 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 90% | 41,945 psi | 74% | 2756 fps | 95.4% |
| Lovex D073.4 | <<locked>> | 80% | 41,046 psi | 73% | 2749 fps | 96.9% |
| Lovex D073.5 | <<locked>> | 84% | 38,000 psi | 67% | 2677 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 88% | 34,113 psi | 60% | 2641 fps | 95% |
| Lovex S060 | <<locked>> | 94% | 46,572 psi | 82% | 2792 fps | 95.1% |
| Lovex S062 | <<locked>> | 96% | 41,191 psi | 73% | 2759 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 40,379 psi | 71% | 2707 fps | 100% |
| Norma 201 | <<locked>> | 92% | 40,785 psi | 72% | 2736 fps | 95.2% |
| Norma 202 | <<locked>> | 86% | 33,504 psi | 59% | 2598 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 94% | 46,833 psi | 83% | 2881 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,062 psi | 43% | 1631 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 36,622 psi | 65% | 2644 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 39,479 psi | 70% | 2808 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 82% | 32,880 psi | 58% | 2546 fps | 95% |
| Rottweil R 902 | <<locked>> | 94% | 41,191 psi | 73% | 2736 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 41,046 psi | 73% | 2749 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 34,113 psi | 60% | 2641 fps | 95% |
| Shooters World Precision | <<locked>> | 96% | 41,191 psi | 73% | 2759 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 44,976 psi | 80% | 2776 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 44,628 psi | 79% | 2503 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 38,174 psi | 67% | 2697 fps | 96.9% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,463 psi | 64% | 2635 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 46,340 psi | 82% | 2861 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 33,997 psi | 60% | 2523 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 29,138 psi | 52% | 2418 fps | 95% |
| Somchem S321 | <<locked>> | 86% | 39,436 psi | 70% | 2730 fps | 95% |
| Somchem S335 | <<locked>> | 82% | 31,053 psi | 55% | 2470 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 42,656 psi | 75% | 2677 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 34,243 psi | 61% | 2536 fps | 99% |
| Vihtavuori N133 | <<locked>> | 80% | 29,762 psi | 53% | 2438 fps | 97% |
| Vihtavuori N135 | <<locked>> | 80% | 24,729 psi | 44% | 2369 fps | 95% |
| Vihtavuori N140 | <<locked>> | 86% | 31,778 psi | 56% | 2533 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 90% | 42,206 psi | 75% | 2756 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 88% | 32,619 psi | 58% | 2569 fps | 95% |
| Winchester 748 | <<locked>> | 88% | 37,826 psi | 67% | 2730 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 96% | 45,397 psi | 80% | 2864 fps | 95.5% |
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 89 powders for 8 x 57 IS loaded with the .323 | 145gr | Brenneke TIG nature. ReloadSwiss RS 52 delivers the highest muzzle velocity at 3,035 fps; across all powders the maximum-charge window runs from 1,781 fps to 3,035 fps. Accurate 2495 gives the best case fill at 100 %, and 89 of the 89 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 145.0 gr projectile in 0.323" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 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. Hodgdon BL-C2, Hodgdon H335, Alliant AR-Comp rank at the top here: for 8 x 57 IS with the .323 | 145gr | Brenneke TIG nature they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, ADI AR 2208, Alliant Power Pro 2000-MR 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.