Load Specifications
Load data in caliber 8 x 57 IS with .323 | 160gr | Barnes TTSX BT bullet and 78 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, Ramshot Wild Boar and Hodgdon BL-C2.
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% | 48,008 psi | 85% | 2700 fps | 100% |
| Accurate 2230 | <<locked>> | 84% | 49,313 psi | 87% | 2776 fps | 96.2% |
| Accurate 2460 | <<locked>> | 90% | 49,487 psi | 87% | 2756 fps | 99.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 49,545 psi | 88% | 2785 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 48,211 psi | 85% | 2785 fps | 99.2% |
| Accurate 2520 | <<locked>> | 94% | 48,211 psi | 85% | 2785 fps | 99.2% |
| Accurate 4064ᴾ | <<locked>> | 100% | 45,963 psi | 81% | 2759 fps | 99.6% |
| Accurate LT-30 | <<locked>> | 86% | 50,067 psi | 89% | 2661 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 50,502 psi | 89% | 2677 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 96% | 50,270 psi | 89% | 2802 fps | 97% |
| ADI AR 2207 | <<locked>> | 84% | 50,749 psi | 90% | 2697 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 48,979 psi | 87% | 2766 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 94% | 50,198 psi | 89% | 2772 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 94% | 47,935 psi | 85% | 2776 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 50,865 psi | 90% | 2871 fps | 97.8% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 46,021 psi | 81% | 2753 fps | 97.1% |
| Alliant Reloder-10x | <<locked>> | 88% | 48,428 psi | 86% | 2720 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 50,589 psi | 89% | 2825 fps | 96.5% |
| Alliant Reloder-7 | <<locked>> | 82% | 48,776 psi | 86% | 2664 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 48,718 psi | 86% | 2657 fps | 100% |
| Bofors RP3ᴾ | <<locked>> | 100% | 45,847 psi | 81% | 2762 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 92% | 49,792 psi | 88% | 2720 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 94% | 47,950 psi | 85% | 2792 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 92% | 49,676 psi | 88% | 2867 fps | 96.2% |
| Hodgdon H322 | <<locked>> | 92% | 49,966 psi | 88% | 2782 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 86% | 48,167 psi | 85% | 2759 fps | 99.5% |
| Hodgdon H4198 | <<locked>> | 84% | 48,979 psi | 87% | 2664 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 96% | 50,560 psi | 89% | 2815 fps | 97.6% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 48,385 psi | 86% | 2825 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,257 psi | 59% | 1686 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 51,010 psi | 90% | 2799 fps | 97.6% |
| IMR 3031ᴾ | <<locked>> | 100% | 49,806 psi | 88% | 2838 fps | 100% |
| IMR 4198 | <<locked>> | 88% | 49,922 psi | 88% | 2697 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 48,660 psi | 86% | 2812 fps | 96.8% |
| IMR 8208 XBR | <<locked>> | 94% | 50,198 psi | 89% | 2772 fps | 98.1% |
| Lovex D073.4 | <<locked>> | 84% | 49,951 psi | 88% | 2769 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 90% | 49,588 psi | 88% | 2759 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 96% | 47,906 psi | 85% | 2779 fps | 99.1% |
| Lovex S060 | <<locked>> | 94% | 48,776 psi | 86% | 2697 fps | 96.6% |
| Lovex S062ᴾ | <<locked>> | 100% | 49,487 psi | 87% | 2776 fps | 98.1% |
| Norma 200 | <<locked>> | 84% | 48,327 psi | 85% | 2697 fps | 100% |
| Norma 201 | <<locked>> | 96% | 48,791 psi | 86% | 2753 fps | 98% |
| Norma 202 | <<locked>> | 96% | 49,052 psi | 87% | 2772 fps | 99.6% |
| Norma 203Bᴾ | <<locked>> | 100% | 49,588 psi | 88% | 2815 fps | 96.9% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 50,444 psi | 89% | 2838 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 94% | 49,327 psi | 87% | 2792 fps | 96.7% |
| Ramshot X-Terminator | <<locked>> | 90% | 48,863 psi | 86% | 2723 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,141 psi | 59% | 1726 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 50,082 psi | 89% | 2769 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 49,806 psi | 88% | 2884 fps | 96.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 44,179 psi | 78% | 2792 fps | 98.1% |
| Rottweil R 901 | <<locked>> | 94% | 49,966 psi | 88% | 2756 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 98% | 48,936 psi | 87% | 2743 fps | 98% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 42,264 psi | 75% | 2687 fps | 95.9% |
| Shooters World AR Plus | <<locked>> | 84% | 49,951 psi | 88% | 2769 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 96% | 47,906 psi | 85% | 2779 fps | 99.1% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 49,487 psi | 87% | 2776 fps | 98.1% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 50,749 psi | 90% | 2740 fps | 97.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 49,095 psi | 87% | 2428 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 49,414 psi | 87% | 2772 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 49,298 psi | 87% | 2733 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 48,660 psi | 86% | 2769 fps | 96.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 48,776 psi | 86% | 2677 fps | 99.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 47,819 psi | 85% | 2671 fps | 99.8% |
| Somchem S321 | <<locked>> | 90% | 47,819 psi | 85% | 2756 fps | 98% |
| Somchem S335 | <<locked>> | 96% | 50,444 psi | 89% | 2723 fps | 99.9% |
| Somchem S341 | <<locked>> | 96% | 51,111 psi | 90% | 2792 fps | 96.9% |
| Somchem S355ᴾ | <<locked>> | 100% | 43,918 psi | 78% | 2703 fps | 96.1% |
| Vihtavuori N120 | <<locked>> | 84% | 50,807 psi | 90% | 2651 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 48,965 psi | 87% | 2674 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 48,428 psi | 86% | 2677 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 50,227 psi | 89% | 2782 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 49,530 psi | 88% | 2753 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,148 psi | 75% | 2641 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 94% | 50,618 psi | 89% | 2772 fps | 98.2% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 51,010 psi | 90% | 2792 fps | 99.7% |
| Winchester 748 | <<locked>> | 92% | 49,893 psi | 88% | 2828 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 50,343 psi | 89% | 2815 fps | 97.6% |
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% | 32,590 psi | 58% | 2411 fps | 98.7% |
| Accurate 2230 | <<locked>> | 82% | 45,919 psi | 81% | 2717 fps | 95.4% |
| Accurate 2460 | <<locked>> | 80% | 35,070 psi | 62% | 2487 fps | 96.8% |
| Accurate 2495 | <<locked>> | 80% | 24,729 psi | 44% | 2274 fps | 96.5% |
| Accurate 2520 | <<locked>> | 82% | 31,473 psi | 56% | 2451 fps | 95% |
| Accurate 2520 | <<locked>> | 82% | 31,473 psi | 56% | 2451 fps | 95% |
| Accurate 4064 | <<locked>> | 86% | 28,863 psi | 51% | 2398 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 41,785 psi | 74% | 2523 fps | 99.4% |
| Accurate LT-32 | <<locked>> | 80% | 42,148 psi | 75% | 2533 fps | 98.1% |
| ADI AR 2206H | <<locked>> | 92% | 44,193 psi | 78% | 2694 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 44,585 psi | 79% | 2605 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 39,784 psi | 70% | 2605 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 86% | 38,754 psi | 69% | 2559 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 30,037 psi | 53% | 2431 fps | 99.8% |
| Alliant Power Pro 1200-R | 43.5 gr | 84% | 41,597 psi | 74% | 2697 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 40,495 psi | 72% | 2651 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,637 psi | 67% | 2530 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 96% | 44,411 psi | 79% | 2720 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 80% | 45,803 psi | 81% | 2618 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,190 psi | 71% | 2513 fps | 99.3% |
| Bofors RP3 | <<locked>> | 96% | 39,900 psi | 71% | 2651 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 36,593 psi | 65% | 2470 fps | 95.5% |
| Hodgdon BL-C2 | 47.4 gr | 86% | 36,027 psi | 64% | 2562 fps | 95.4% |
| Hodgdon CFE223 | <<locked>> | 90% | 46,412 psi | 82% | 2808 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 33,562 psi | 59% | 2470 fps | 97.6% |
| Hodgdon H335 | <<locked>> | 80% | 38,928 psi | 69% | 2589 fps | 98.1% |
| Hodgdon H4198 | <<locked>> | 80% | 43,207 psi | 76% | 2566 fps | 99.2% |
| Hodgdon H4895 | <<locked>> | 90% | 41,727 psi | 74% | 2654 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 39,784 psi | 70% | 2661 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,468 psi | 43% | 1506 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 42,322 psi | 75% | 2644 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 26,223 psi | 46% | 2326 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 39,291 psi | 69% | 2520 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 42,641 psi | 75% | 2703 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 86% | 38,754 psi | 69% | 2559 fps | 95.4% |
| Lovex D073.4 | <<locked>> | 80% | 43,033 psi | 76% | 2651 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 80% | 34,983 psi | 62% | 2484 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 84% | 31,473 psi | 56% | 2451 fps | 95% |
| Lovex S060 | <<locked>> | 90% | 43,004 psi | 76% | 2595 fps | 95.2% |
| Lovex S062 | <<locked>> | 92% | 38,479 psi | 68% | 2575 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 42,322 psi | 75% | 2598 fps | 100% |
| Norma 201 | <<locked>> | 88% | 37,942 psi | 67% | 2546 fps | 95.3% |
| Norma 202 | <<locked>> | 82% | 31,183 psi | 55% | 2415 fps | 95.8% |
| Norma 203B | <<locked>> | 96% | 43,511 psi | 77% | 2707 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 96% | 44,092 psi | 78% | 2726 fps | 95.1% |
| Ramshot Wild Boar | 49.8 gr | 90% | 43,062 psi | 76% | 2680 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 88% | 45,498 psi | 80% | 2664 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,294 psi | 43% | 1539 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,955 psi | 64% | 2503 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 46,441 psi | 82% | 2822 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 36,332 psi | 64% | 2615 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 32,590 psi | 58% | 2411 fps | 96% |
| Rottweil R 902 | <<locked>> | 90% | 38,116 psi | 67% | 2543 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 98% | 39,552 psi | 70% | 2635 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 43,033 psi | 76% | 2651 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 31,473 psi | 56% | 2451 fps | 95% |
| Shooters World Precision | <<locked>> | 92% | 38,479 psi | 68% | 2575 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 40,944 psi | 72% | 2566 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,383 psi | 82% | 2388 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,335 psi | 71% | 2608 fps | 98.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,218 psi | 68% | 2536 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 42,830 psi | 76% | 2664 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,459 psi | 56% | 2339 fps | 95.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 27,050 psi | 48% | 2244 fps | 95.1% |
| Somchem S321 | <<locked>> | 82% | 36,201 psi | 64% | 2530 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 30,603 psi | 54% | 2339 fps | 96.5% |
| Somchem S341 | <<locked>> | 92% | 44,585 psi | 79% | 2684 fps | 95.4% |
| Somchem S355 | <<locked>> | 98% | 41,220 psi | 73% | 2651 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 44,701 psi | 79% | 2562 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,926 psi | 64% | 2444 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 80% | 31,328 psi | 55% | 2356 fps | 98.3% |
| Vihtavuori N135 | <<locked>> | 80% | 26,078 psi | 46% | 2297 fps | 96.8% |
| Vihtavuori N140 | <<locked>> | 82% | 29,414 psi | 52% | 2352 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 96% | 37,014 psi | 65% | 2539 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 86% | 38,696 psi | 68% | 2556 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 84% | 30,240 psi | 53% | 2385 fps | 95.1% |
| Winchester 748 | <<locked>> | 82% | 35,128 psi | 62% | 2539 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 84% | 40,437 psi | 71% | 2638 fps | 95.2% |
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 91 powders for 8 x 57 IS loaded with the .323 | 160gr | Barnes TTSX BT. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,884 fps; across all powders the maximum-charge window runs from 1,686 fps to 2,884 fps. Accurate 2495 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.323" calls for a 1:13.0 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. Alliant Power Pro 1200-R, Ramshot Wild Boar, Hodgdon BL-C2 rank at the top here: for 8 x 57 IS with the .323 | 160gr | Barnes TTSX BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-17, Hodgdon H380, Ramshot TAC 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.