Load Specifications
Load data in caliber 8 x 75 RS with .323 | 180gr | North Fork Semi Spitz bullet and 82 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, ReloadSwiss RS 60 and Alliant Reloder-17.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 86% | 48,008 psi | 87% | 2710 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 49,763 psi | 90% | 2772 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 48,167 psi | 87% | 2756 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 47,181 psi | 86% | 2818 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 84% | 49,110 psi | 89% | 2782 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 88% | 47,065 psi | 85% | 2733 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 82% | 48,312 psi | 88% | 2740 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 82% | 48,385 psi | 88% | 2720 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 47,892 psi | 87% | 2881 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 49,647 psi | 90% | 2802 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 86% | 47,268 psi | 86% | 2769 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 98% | 49,284 psi | 89% | 2881 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 94% | 49,850 psi | 90% | 2917 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,260 psi | 68% | 2664 fps | 98% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,307 psi | 75% | 2808 fps | 97% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 48,283 psi | 88% | 2785 fps | 98.8% |
| Bofors RP3 | <<locked>> | 90% | 49,864 psi | 90% | 2815 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 47,108 psi | 85% | 2759 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 47,688 psi | 87% | 2769 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 94% | 46,992 psi | 85% | 2812 fps | 96% |
| Hodgdon H4895 | <<locked>> | 84% | 49,545 psi | 90% | 2792 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,486 psi | 88% | 2808 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 48,428 psi | 88% | 2822 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,201 psi | 64% | 1739 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 47,558 psi | 86% | 2743 fps | 99.6% |
| IMR 3031 | <<locked>> | 84% | 49,066 psi | 89% | 2782 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 49,501 psi | 90% | 2766 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 86% | 49,559 psi | 90% | 2736 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 49,342 psi | 90% | 2762 fps | 96.3% |
| IMR 4831 | <<locked>> | 98% | 48,066 psi | 87% | 2815 fps | 98.8% |
| IMR 4895 | <<locked>> | 86% | 48,399 psi | 88% | 2802 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 82% | 48,312 psi | 88% | 2740 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 84% | 48,153 psi | 87% | 2756 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 49,037 psi | 89% | 2713 fps | 99.5% |
| Lovex S062 | <<locked>> | 88% | 49,240 psi | 89% | 2762 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 48,646 psi | 88% | 2759 fps | 97.6% |
| Lovex S070 | <<locked>> | 96% | 49,081 psi | 89% | 2789 fps | 96.7% |
| Norma 201 | <<locked>> | 84% | 48,022 psi | 87% | 2730 fps | 99.9% |
| Norma 202 | <<locked>> | 84% | 48,370 psi | 88% | 2736 fps | 100% |
| Norma 203B | <<locked>> | 88% | 49,530 psi | 90% | 2812 fps | 99.6% |
| Norma URP | <<locked>> | 96% | 46,818 psi | 85% | 2808 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 88% | 49,516 psi | 90% | 2828 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 98% | 48,907 psi | 89% | 2854 fps | 97.4% |
| Ramshot TAC | <<locked>> | 82% | 48,312 psi | 88% | 2746 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 47,543 psi | 86% | 2762 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,781 psi | 65% | 1781 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 48,225 psi | 88% | 2753 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 46,920 psi | 85% | 2828 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 49,632 psi | 90% | 2917 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 46,818 psi | 85% | 2838 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 47,021 psi | 85% | 2858 fps | 97.9% |
| Rottweil R 901 | <<locked>> | 82% | 49,168 psi | 89% | 2720 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 48,559 psi | 88% | 2733 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 92% | 49,748 psi | 90% | 2808 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 94% | 48,646 psi | 88% | 2759 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 84% | 48,153 psi | 87% | 2756 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 49,240 psi | 89% | 2762 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 49,081 psi | 89% | 2789 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 48,167 psi | 87% | 2815 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 49,806 psi | 90% | 2776 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 47,543 psi | 86% | 2753 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 49,559 psi | 90% | 2680 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 49,545 psi | 90% | 2677 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 48,428 psi | 88% | 2703 fps | 96.2% |
| Somchem S335 | <<locked>> | 84% | 49,023 psi | 89% | 2680 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 49,255 psi | 89% | 2766 fps | 99.5% |
| Somchem S355 | <<locked>> | 90% | 47,340 psi | 86% | 2756 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,834 psi | 87% | 2867 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 49,806 psi | 90% | 2667 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 47,892 psi | 87% | 2703 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 48,820 psi | 89% | 2720 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 48,341 psi | 88% | 2740 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 49,168 psi | 89% | 2808 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 82% | 48,283 psi | 88% | 2730 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 86% | 47,036 psi | 85% | 2710 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 48,341 psi | 88% | 2815 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,422 psi | 73% | 2740 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 49,559 psi | 90% | 2789 fps | 99.9% |
| Winchester 748 | <<locked>> | 82% | 48,037 psi | 87% | 2782 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 47,224 psi | 86% | 2815 fps | 96.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,373 psi | 61% | 2648 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 84% | 46,862 psi | 85% | 2753 fps | 99.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 39,537 psi | 72% | 2569 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,427 psi | 84% | 2720 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 37,405 psi | 68% | 2562 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 35,824 psi | 65% | 2592 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 43,105 psi | 78% | 2674 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 80% | 36,724 psi | 67% | 2523 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,121 psi | 82% | 2684 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 45,165 psi | 82% | 2671 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,204 psi | 71% | 2697 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,245 psi | 66% | 2546 fps | 98.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,841 psi | 70% | 2605 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 86% | 34,011 psi | 62% | 2549 fps | 95% |
| Alliant Reloder-17 | 54.9 gr | 80% | 31,241 psi | 57% | 2503 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,082 psi | 56% | 2500 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,537 psi | 70% | 2746 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,235 psi | 77% | 2674 fps | 97.7% |
| Bofors RP3 | <<locked>> | 80% | 35,766 psi | 65% | 2546 fps | 98.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,990 psi | 80% | 2707 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 80% | 36,709 psi | 67% | 2549 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 92% | 44,092 psi | 80% | 2756 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 43,453 psi | 79% | 2684 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,254 psi | 53% | 2395 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,508 psi | 72% | 2654 fps | 98.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,194 psi | 48% | 1552 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,872 psi | 76% | 2638 fps | 98.9% |
| IMR 3031 | <<locked>> | 80% | 43,105 psi | 78% | 2684 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,551 psi | 70% | 2556 fps | 97.4% |
| IMR 4166 Enduron | <<locked>> | 82% | 43,772 psi | 79% | 2631 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,427 psi | 84% | 2710 fps | 95.6% |
| IMR 4831 | <<locked>> | 88% | 34,664 psi | 63% | 2546 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 39,784 psi | 72% | 2638 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 80% | 45,121 psi | 82% | 2684 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 42,061 psi | 76% | 2654 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,323 psi | 79% | 2612 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 38,392 psi | 70% | 2562 fps | 98.9% |
| Lovex S065 | <<locked>> | 88% | 40,321 psi | 73% | 2602 fps | 95.6% |
| Lovex S070 | <<locked>> | 92% | 43,308 psi | 79% | 2680 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 42,293 psi | 77% | 2628 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 42,598 psi | 77% | 2638 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,232 psi | 69% | 2595 fps | 97.8% |
| Norma URP | <<locked>> | 88% | 36,260 psi | 66% | 2595 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 37,826 psi | 69% | 2608 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 92% | 40,408 psi | 73% | 2687 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 45,049 psi | 82% | 2684 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,483 psi | 81% | 2707 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,614 psi | 48% | 1594 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,395 psi | 77% | 2641 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,770 psi | 74% | 2710 fps | 97.9% |
| ReloadSwiss RS 60 | 54.9 gr | 80% | 33,243 psi | 60% | 2572 fps | 98.9% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,534 psi | 64% | 2605 fps | 95.3% |
| ReloadSwiss RS 70 | 62.7 gr | 90% | 38,406 psi | 70% | 2671 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 46,195 psi | 84% | 2671 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,335 psi | 73% | 2582 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 80% | 33,707 psi | 61% | 2493 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,321 psi | 73% | 2602 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,061 psi | 76% | 2654 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,392 psi | 70% | 2562 fps | 98.9% |
| Shooters World SW4350 | <<locked>> | 92% | 43,308 psi | 79% | 2680 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,693 psi | 63% | 2539 fps | 96.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,468 psi | 79% | 2661 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,756 psi | 76% | 2644 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,743 psi | 79% | 2585 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,274 psi | 66% | 2451 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,397 psi | 82% | 2651 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 43,323 psi | 79% | 2585 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,989 psi | 78% | 2657 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 34,548 psi | 63% | 2497 fps | 97.2% |
| Somchem S365 | <<locked>> | 82% | 26,745 psi | 49% | 2379 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 44,005 psi | 80% | 2579 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,624 psi | 72% | 2566 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,321 psi | 73% | 2575 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,895 psi | 60% | 2438 fps | 98.1% |
| Vihtavuori N160 | <<locked>> | 86% | 35,520 psi | 64% | 2543 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 45,252 psi | 82% | 2680 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 38,798 psi | 70% | 2562 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 34,882 psi | 63% | 2543 fps | 95% |
| Vihtavuori N555 | <<locked>> | 94% | 33,185 psi | 60% | 2575 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,211 psi | 53% | 2356 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 44,802 psi | 81% | 2726 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 44,092 psi | 80% | 2756 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 98% | 31,227 psi | 57% | 2579 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,089 psi | 75% | 2648 fps | 98.9% |
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 75 RS loaded with the .323 | 180gr | North Fork Semi Spitz. Alliant Reloder-17 delivers the highest muzzle velocity at 2,917 fps; across all powders the maximum-charge window runs from 1,739 fps to 2,917 fps. Accurate 3100 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 (380 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.323" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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 70, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 8 x 75 RS with the .323 | 180gr | North Fork Semi Spitz they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 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.