Load Specifications
Load data in caliber 8 x 57 IS with .323 | 170gr | Winchester Powerpoint bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 52, ReloadSwiss RS 60 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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 49,226 psi | 87% | 2657 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 50,763 psi | 90% | 2717 fps | 99.9% |
| Accurate 2495 | <<locked>> | 94% | 48,834 psi | 86% | 2707 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 48,196 psi | 85% | 2713 fps | 99.7% |
| Accurate 4064 | <<locked>> | 96% | 48,602 psi | 86% | 2740 fps | 100% |
| Accurate LT-30 | <<locked>> | 82% | 49,821 psi | 88% | 2608 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 50,198 psi | 89% | 2625 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 90% | 48,153 psi | 85% | 2717 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 96% | 49,153 psi | 87% | 2710 fps | 97.2% |
| ADI AR 2219 | <<locked>> | 82% | 49,429 psi | 87% | 2713 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 50,763 psi | 90% | 2733 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 90% | 49,690 psi | 88% | 2730 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 48,617 psi | 86% | 2776 fps | 98.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 50,343 psi | 89% | 2851 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 51,024 psi | 90% | 2782 fps | 99% |
| Alliant Reloder-10x | <<locked>> | 84% | 49,124 psi | 87% | 2664 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 48,660 psi | 86% | 2746 fps | 97.4% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 48,225 psi | 85% | 2822 fps | 98.2% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 48,501 psi | 86% | 2602 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 50,691 psi | 90% | 2772 fps | 97.1% |
| Bofors RP3 | <<locked>> | 98% | 50,894 psi | 90% | 2789 fps | 99% |
| Hodgdon Benchmark | <<locked>> | 88% | 50,212 psi | 89% | 2680 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 90% | 49,095 psi | 87% | 2756 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 88% | 50,546 psi | 89% | 2835 fps | 97.7% |
| Hodgdon H322 | <<locked>> | 84% | 48,022 psi | 85% | 2694 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 49,052 psi | 87% | 2717 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 96% | 49,487 psi | 87% | 2746 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 90% | 48,472 psi | 86% | 2726 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 49,690 psi | 88% | 2799 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,214 psi | 60% | 1677 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 49,792 psi | 88% | 2733 fps | 98.4% |
| IMR 3031 | <<locked>> | 92% | 50,343 psi | 89% | 2779 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 48,588 psi | 86% | 2697 fps | 97.4% |
| IMR 4198 | <<locked>> | 84% | 50,096 psi | 89% | 2635 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 49,806 psi | 88% | 2779 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 90% | 50,763 psi | 90% | 2733 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 86% | 50,705 psi | 90% | 2723 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 92% | 49,835 psi | 88% | 2749 fps | 99.8% |
| Lovex S060 | <<locked>> | 90% | 48,834 psi | 86% | 2654 fps | 97.8% |
| Lovex S062 | <<locked>> | 96% | 50,894 psi | 90% | 2746 fps | 99.2% |
| Norma 201 | <<locked>> | 92% | 50,053 psi | 88% | 2720 fps | 99% |
| Norma 202 | <<locked>> | 92% | 50,270 psi | 89% | 2733 fps | 100% |
| Norma 203B | <<locked>> | 96% | 50,923 psi | 90% | 2785 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 94% | 47,892 psi | 85% | 2753 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 90% | 50,038 psi | 88% | 2753 fps | 98% |
| Ramshot X-Terminator | <<locked>> | 86% | 48,965 psi | 87% | 2680 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,287 psi | 61% | 1713 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 50,531 psi | 89% | 2723 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 51,169 psi | 90% | 2858 fps | 97.8% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 48,153 psi | 85% | 2835 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 88% | 48,486 psi | 86% | 2674 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 94% | 50,517 psi | 89% | 2717 fps | 99.1% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 50,430 psi | 89% | 2776 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 92% | 49,835 psi | 88% | 2749 fps | 99.8% |
| Shooters World Precision | <<locked>> | 96% | 50,894 psi | 90% | 2746 fps | 99.2% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 50,444 psi | 89% | 2687 fps | 98.8% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 49,792 psi | 88% | 2720 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 49,385 psi | 87% | 2785 fps | 97.9% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 49,922 psi | 88% | 2680 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 48,892 psi | 86% | 2700 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 49,734 psi | 88% | 2740 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 49,400 psi | 87% | 2635 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 48,530 psi | 86% | 2628 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 48,356 psi | 85% | 2710 fps | 99% |
| Somchem S335 | <<locked>> | 90% | 48,356 psi | 85% | 2635 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 48,443 psi | 86% | 2703 fps | 97.6% |
| Somchem S355 | <<locked>> | 98% | 48,515 psi | 86% | 2733 fps | 98.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,854 psi | 65% | 2592 fps | 96.6% |
| Vihtavuori N130 | <<locked>> | 86% | 49,400 psi | 87% | 2618 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 49,226 psi | 87% | 2631 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 49,008 psi | 87% | 2700 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 50,778 psi | 90% | 2713 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 49,617 psi | 88% | 2717 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 90% | 51,053 psi | 90% | 2730 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 94% | 49,066 psi | 87% | 2707 fps | 99.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 45,527 psi | 80% | 2654 fps | 97.5% |
| Winchester 748 | <<locked>> | 90% | 49,748 psi | 88% | 2772 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 92% | 49,023 psi | 87% | 2743 fps | 98.4% |
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% | 38,247 psi | 68% | 2470 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 41,466 psi | 73% | 2559 fps | 99.2% |
| Accurate 2495 | <<locked>> | 80% | 30,777 psi | 54% | 2365 fps | 99.3% |
| Accurate 2520 | <<locked>> | 80% | 36,782 psi | 65% | 2503 fps | 98% |
| Accurate 4064 | <<locked>> | 80% | 29,138 psi | 52% | 2343 fps | 96.7% |
| Accurate LT-30 | <<locked>> | 80% | 46,775 psi | 83% | 2559 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 47,137 psi | 83% | 2575 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 39,958 psi | 71% | 2559 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 90% | 40,756 psi | 72% | 2556 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 46,079 psi | 81% | 2661 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,188 psi | 66% | 2477 fps | 96.3% |
| Alliant AR-Comp | <<locked>> | 80% | 35,505 psi | 63% | 2493 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 42,656 psi | 75% | 2664 fps | 97.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 44,222 psi | 78% | 2733 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 34,780 psi | 61% | 2474 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 43,700 psi | 77% | 2579 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 40,321 psi | 71% | 2589 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 94% | 39,566 psi | 70% | 2644 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 45,484 psi | 80% | 2552 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 44,324 psi | 78% | 2661 fps | 95.6% |
| Bofors RP3 | <<locked>> | 86% | 34,084 psi | 60% | 2470 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,349 psi | 70% | 2480 fps | 97.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,969 psi | 62% | 2480 fps | 96.3% |
| Hodgdon CFE223 | <<locked>> | 82% | 41,147 psi | 73% | 2657 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 42,119 psi | 74% | 2592 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 80% | 42,757 psi | 76% | 2608 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 94% | 46,441 psi | 82% | 2690 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 82% | 37,739 psi | 67% | 2520 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 35,984 psi | 64% | 2530 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,237 psi | 45% | 1493 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 36,332 psi | 64% | 2474 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 33,997 psi | 60% | 2480 fps | 99.3% |
| IMR 4064 | <<locked>> | 88% | 40,422 psi | 71% | 2546 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 44,498 psi | 79% | 2549 fps | 100% |
| IMR 4895 | 47.7 gr | 86% | 38,667 psi | 68% | 2569 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 37,188 psi | 66% | 2477 fps | 96.3% |
| Lovex D073.5 | <<locked>> | 80% | 41,176 psi | 73% | 2559 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 80% | 33,083 psi | 58% | 2434 fps | 96.9% |
| Lovex S060 | <<locked>> | 82% | 38,435 psi | 68% | 2461 fps | 95.3% |
| Lovex S062 | <<locked>> | 84% | 35,070 psi | 62% | 2448 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 34,490 psi | 61% | 2418 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 34,287 psi | 61% | 2434 fps | 98% |
| Norma 203B | <<locked>> | 88% | 39,595 psi | 70% | 2579 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 88% | 39,363 psi | 70% | 2585 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 38,406 psi | 68% | 2536 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,451 psi | 72% | 2523 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,396 psi | 45% | 1529 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 41,611 psi | 74% | 2566 fps | 98.7% |
| ReloadSwiss RS 52 | 50.4 gr | 88% | 41,843 psi | 74% | 2687 fps | 95.6% |
| ReloadSwiss RS 60 | 50 gr | 86% | 32,518 psi | 57% | 2480 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 38,029 psi | 67% | 2477 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 82% | 34,838 psi | 62% | 2418 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 90% | 36,521 psi | 65% | 2516 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,083 psi | 58% | 2434 fps | 96.9% |
| Shooters World Precision | <<locked>> | 84% | 35,070 psi | 62% | 2448 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,208 psi | 78% | 2582 fps | 97.7% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 46,514 psi | 82% | 2667 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 40,770 psi | 72% | 2625 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 44,034 psi | 78% | 2585 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 45,919 psi | 81% | 2651 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 38,406 psi | 68% | 2526 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,172 psi | 64% | 2398 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,457 psi | 52% | 2260 fps | 97.5% |
| Somchem S321 | <<locked>> | 80% | 39,465 psi | 70% | 2549 fps | 97.3% |
| Somchem S335 | <<locked>> | 80% | 35,737 psi | 63% | 2402 fps | 98.9% |
| Somchem S341 | <<locked>> | 84% | 39,450 psi | 70% | 2539 fps | 95.4% |
| Somchem S355 | <<locked>> | 90% | 37,681 psi | 67% | 2526 fps | 95.6% |
| Somchem S365 | <<locked>> | 98% | 34,664 psi | 61% | 2539 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 41,089 psi | 73% | 2484 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,158 psi | 64% | 2405 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 31,270 psi | 55% | 2372 fps | 99.3% |
| Vihtavuori N140 | <<locked>> | 80% | 32,489 psi | 57% | 2375 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 86% | 31,676 psi | 56% | 2369 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 36,782 psi | 65% | 2467 fps | 96.3% |
| Vihtavuori N540 | <<locked>> | 80% | 31,140 psi | 55% | 2356 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 37,376 psi | 66% | 2490 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 35,505 psi | 63% | 2500 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 37,420 psi | 66% | 2526 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 103 powders for 8 x 57 IS loaded with the .323 | 170gr | Winchester Powerpoint. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,858 fps; across all powders the maximum-charge window runs from 1,677 fps to 2,858 fps. Accurate 4350 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.323" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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, ReloadSwiss RS 60, IMR 4895 rank at the top here: for 8 x 57 IS with the .323 | 170gr | Winchester Powerpoint 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.