Load Specifications
Load data in caliber 8 x 57 IS with .323 | 175gr | CutEdge ESP Raptor bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 52, Hodgdon CFE223 and IMR 4895.
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>> | 90% | 49,095 psi | 87% | 2602 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 49,821 psi | 88% | 2674 fps | 97.1% |
| Accurate 2230 | <<locked>> | 82% | 50,096 psi | 89% | 2680 fps | 97.5% |
| Accurate 2460 | <<locked>> | 88% | 50,662 psi | 90% | 2661 fps | 99.9% |
| Accurate 2495 | <<locked>> | 96% | 47,921 psi | 85% | 2644 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 48,254 psi | 85% | 2661 fps | 99.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 50,792 psi | 90% | 2720 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 50,589 psi | 89% | 2562 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 50,966 psi | 90% | 2579 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 92% | 48,254 psi | 85% | 2661 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 98% | 49,197 psi | 87% | 2654 fps | 97.1% |
| ADI AR 2219 | <<locked>> | 84% | 49,661 psi | 88% | 2664 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 92% | 51,111 psi | 90% | 2680 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 92% | 49,487 psi | 87% | 2674 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 48,834 psi | 86% | 2723 fps | 98.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 96% | 51,010 psi | 90% | 2802 fps | 97.2% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 50,734 psi | 90% | 2720 fps | 98.9% |
| Alliant Reloder-10x | <<locked>> | 86% | 49,371 psi | 87% | 2615 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 48,733 psi | 86% | 2690 fps | 97.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,020 psi | 80% | 2700 fps | 97.3% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 49,371 psi | 87% | 2559 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 94% | 51,082 psi | 90% | 2723 fps | 97.1% |
| Bofors RP3ᴾ | <<locked>> | 100% | 50,502 psi | 89% | 2730 fps | 98.9% |
| Hodgdon Benchmark | <<locked>> | 90% | 50,430 psi | 89% | 2625 fps | 99.3% |
| Hodgdon BL-C2 | <<locked>> | 92% | 48,965 psi | 87% | 2700 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 90% | 50,937 psi | 90% | 2782 fps | 97.7% |
| Hodgdon H322 | <<locked>> | 86% | 48,385 psi | 86% | 2644 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 49,240 psi | 87% | 2664 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 98% | 49,327 psi | 87% | 2684 fps | 96% |
| Hodgdon H4895 | <<locked>> | 92% | 48,602 psi | 86% | 2677 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 49,879 psi | 88% | 2746 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,649 psi | 59% | 1621 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 50,314 psi | 89% | 2680 fps | 98.4% |
| IMR 3031 | <<locked>> | 94% | 50,270 psi | 89% | 2723 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 48,675 psi | 86% | 2641 fps | 97.3% |
| IMR 4198 | <<locked>> | 86% | 50,517 psi | 89% | 2585 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 49,937 psi | 88% | 2723 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 92% | 51,111 psi | 90% | 2680 fps | 99.1% |
| Lovex D073.4 | <<locked>> | 82% | 50,647 psi | 90% | 2667 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 88% | 50,821 psi | 90% | 2671 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 94% | 49,400 psi | 87% | 2690 fps | 99.8% |
| Lovex S060 | <<locked>> | 92% | 49,400 psi | 87% | 2608 fps | 97.8% |
| Lovex S062 | <<locked>> | 98% | 50,633 psi | 90% | 2687 fps | 99.1% |
| Norma 200 | <<locked>> | 82% | 49,008 psi | 87% | 2585 fps | 100% |
| Norma 201 | <<locked>> | 94% | 50,053 psi | 88% | 2664 fps | 99% |
| Norma 202 | <<locked>> | 94% | 50,154 psi | 89% | 2677 fps | 100% |
| Norma 203B | <<locked>> | 98% | 50,879 psi | 90% | 2730 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 96% | 48,240 psi | 85% | 2700 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 92% | 50,430 psi | 89% | 2703 fps | 98% |
| Ramshot X-Terminator | <<locked>> | 88% | 49,385 psi | 87% | 2631 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,910 psi | 60% | 1663 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 50,995 psi | 90% | 2674 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 47,718 psi | 84% | 2740 fps | 97.1% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 48,211 psi | 85% | 2776 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 92% | 51,039 psi | 90% | 2661 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 96% | 50,285 psi | 89% | 2657 fps | 99% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 46,905 psi | 83% | 2664 fps | 98.1% |
| Shooters World AR Plus | <<locked>> | 82% | 50,647 psi | 90% | 2667 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 94% | 49,400 psi | 87% | 2690 fps | 99.8% |
| Shooters World Precision | <<locked>> | 98% | 50,633 psi | 90% | 2687 fps | 99.1% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 51,184 psi | 90% | 2641 fps | 98.8% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 50,125 psi | 89% | 2671 fps | 99.9% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 49,516 psi | 88% | 2730 fps | 97.8% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 50,415 psi | 89% | 2631 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 49,705 psi | 88% | 2680 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 49,748 psi | 88% | 2585 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 48,646 psi | 86% | 2575 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 48,617 psi | 86% | 2661 fps | 99% |
| Somchem S335 | <<locked>> | 92% | 48,312 psi | 85% | 2579 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 48,878 psi | 86% | 2654 fps | 97.6% |
| Somchem S355ᴾ | <<locked>> | 100% | 48,051 psi | 85% | 2671 fps | 98.1% |
| Vihtavuori N130 | <<locked>> | 88% | 49,705 psi | 88% | 2569 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 49,545 psi | 88% | 2582 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 48,965 psi | 87% | 2644 fps | 100% |
| Vihtavuori N140 | <<locked>> | 96% | 50,647 psi | 90% | 2657 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 46,514 psi | 82% | 2612 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 90% | 48,385 psi | 86% | 2631 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 96% | 49,023 psi | 87% | 2651 fps | 99.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 42,859 psi | 76% | 2546 fps | 96.6% |
| Winchester 748 | <<locked>> | 92% | 49,937 psi | 88% | 2717 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 94% | 49,066 psi | 87% | 2690 fps | 98.3% |
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% | 35,708 psi | 63% | 2375 fps | 99.8% |
| Accurate 2200 | <<locked>> | 80% | 46,760 psi | 83% | 2618 fps | 96.4% |
| Accurate 2230 | <<locked>> | 80% | 46,673 psi | 83% | 2625 fps | 96.9% |
| Accurate 2460 | <<locked>> | 80% | 38,450 psi | 68% | 2454 fps | 98.7% |
| Accurate 2495 | <<locked>> | 80% | 27,702 psi | 49% | 2257 fps | 98.6% |
| Accurate 2520 | <<locked>> | 80% | 33,910 psi | 60% | 2398 fps | 97.2% |
| Accurate 4064 | <<locked>> | 80% | 26,310 psi | 47% | 2231 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 44,759 psi | 79% | 2470 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 45,121 psi | 80% | 2487 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 86% | 39,943 psi | 71% | 2510 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 92% | 40,944 psi | 72% | 2510 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 43,410 psi | 77% | 2562 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 34,751 psi | 61% | 2375 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 33,098 psi | 59% | 2398 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 39,726 psi | 70% | 2556 fps | 96.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 44,309 psi | 78% | 2677 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 34,534 psi | 61% | 2425 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 41,046 psi | 73% | 2484 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 40,016 psi | 71% | 2533 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 96% | 39,334 psi | 70% | 2585 fps | 95.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,236 psi | 76% | 2464 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 44,483 psi | 79% | 2612 fps | 95.6% |
| Bofors RP3 | <<locked>> | 90% | 36,027 psi | 64% | 2470 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,144 psi | 66% | 2385 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 32,184 psi | 57% | 2372 fps | 95.2% |
| Hodgdon CFE223 | 47.9 gr | 84% | 41,292 psi | 73% | 2608 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 39,668 psi | 70% | 2497 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 80% | 40,147 psi | 71% | 2510 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 96% | 46,267 psi | 82% | 2635 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 84% | 37,550 psi | 66% | 2467 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 35,911 psi | 63% | 2477 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,874 psi | 44% | 1447 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 36,492 psi | 65% | 2428 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 31,444 psi | 56% | 2375 fps | 98.8% |
| IMR 4064 | <<locked>> | 90% | 40,379 psi | 71% | 2493 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 42,235 psi | 75% | 2461 fps | 100% |
| IMR 4895 | 46 gr | 88% | 38,479 psi | 68% | 2516 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 34,751 psi | 61% | 2375 fps | 95.4% |
| Lovex D073.4 | <<locked>> | 80% | 47,166 psi | 83% | 2615 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 38,334 psi | 68% | 2457 fps | 97.6% |
| Lovex D073.6 | <<locked>> | 80% | 30,443 psi | 54% | 2326 fps | 95.9% |
| Lovex S060 | <<locked>> | 84% | 38,624 psi | 68% | 2411 fps | 95.2% |
| Lovex S062 | <<locked>> | 86% | 34,679 psi | 61% | 2392 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 46,021 psi | 81% | 2543 fps | 100% |
| Norma 201 | <<locked>> | 82% | 34,069 psi | 60% | 2362 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 31,894 psi | 56% | 2333 fps | 97.2% |
| Norma 203B | <<locked>> | 90% | 39,233 psi | 69% | 2520 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 90% | 39,276 psi | 69% | 2533 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 84% | 38,348 psi | 68% | 2487 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 82% | 40,669 psi | 72% | 2477 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,990 psi | 44% | 1483 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,102 psi | 69% | 2467 fps | 98.1% |
| ReloadSwiss RS 52 | 48.6 gr | 90% | 41,800 psi | 74% | 2631 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 32,503 psi | 57% | 2431 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 35,288 psi | 62% | 2375 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 84% | 34,461 psi | 61% | 2365 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 92% | 35,926 psi | 64% | 2461 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 47,166 psi | 83% | 2615 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,443 psi | 54% | 2326 fps | 95.9% |
| Shooters World Precision | <<locked>> | 86% | 34,679 psi | 61% | 2392 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 41,408 psi | 73% | 2477 fps | 97% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 43,845 psi | 78% | 2569 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 40,553 psi | 72% | 2569 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 41,568 psi | 73% | 2490 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 38,348 psi | 68% | 2477 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,939 psi | 60% | 2303 fps | 97.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,456 psi | 49% | 2169 fps | 96.7% |
| Somchem S321 | <<locked>> | 80% | 36,912 psi | 65% | 2448 fps | 96.5% |
| Somchem S335 | <<locked>> | 80% | 33,330 psi | 59% | 2306 fps | 98.3% |
| Somchem S341 | <<locked>> | 86% | 39,639 psi | 70% | 2490 fps | 95.4% |
| Somchem S355 | <<locked>> | 92% | 37,188 psi | 66% | 2467 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 38,711 psi | 68% | 2392 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 33,924 psi | 60% | 2313 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 80% | 28,819 psi | 51% | 2274 fps | 98.8% |
| Vihtavuori N140 | <<locked>> | 80% | 30,240 psi | 53% | 2277 fps | 97% |
| Vihtavuori N150 | <<locked>> | 90% | 33,286 psi | 59% | 2365 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 34,563 psi | 61% | 2369 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 28,863 psi | 51% | 2257 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 39,914 psi | 71% | 2490 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 33,243 psi | 59% | 2402 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 86% | 37,405 psi | 66% | 2477 fps | 95.6% |
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 101 powders for 8 x 57 IS loaded with the .323 | 175gr | CutEdge ESP Raptor. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,802 fps; across all powders the maximum-charge window runs from 1,621 fps to 2,802 fps. Accurate 4064 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.323" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, Accurate 4350, 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. ReloadSwiss RS 52, Hodgdon CFE223, IMR 4895 rank at the top here: for 8 x 57 IS with the .323 | 175gr | CutEdge ESP Raptor they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 4350, Alliant Reloder-16 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.