Load Specifications
Bullet Manufacturer:Fox Bullets
Bullet Weight:180 gr
Bullet Diameter:0.323"
Bullet Length:<<locked>>
Caliber:8 x 75 S load data
Case Length (l3):2.941"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:81 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:25.6"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:12.0
Load data in caliber 8 x 75 S with .323 | 180gr | Fox Classic Hunter bullet and 106 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR and ReloadSwiss RS 52.
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.
A valid access license is required to use the Personalized Load Calculator.
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 2015 | <<locked>> | 88% | 56,956 psi | 89% | 2785 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 55,521 psi | 87% | 2815 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 54,578 psi | 86% | 2802 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 57,595 psi | 90% | 2881 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,230 psi | 87% | 2802 fps | 96.5% |
| Accurate 4064 | <<locked>> | 94% | 54,346 psi | 85% | 2844 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,415 psi | 79% | 2867 fps | 98.9% |
| Accurate LT-30 | <<locked>> | 82% | 56,246 psi | 88% | 2730 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 56,710 psi | 89% | 2756 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 56,173 psi | 88% | 2887 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 96% | 57,159 psi | 90% | 2884 fps | 99.8% |
| ADI AR 2219 | <<locked>> | 82% | 57,464 psi | 90% | 2854 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,274 psi | 87% | 2841 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 55,680 psi | 87% | 2815 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 57,174 psi | 90% | 2949 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 55,970 psi | 88% | 3005 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 56,681 psi | 89% | 2904 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 56,768 psi | 89% | 2792 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 57,450 psi | 90% | 2927 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,530 psi | 78% | 2877 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 98% | 53,896 psi | 84% | 2972 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,882 psi | 55% | 2598 fps | 96.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,579 psi | 87% | 2730 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 56,014 psi | 88% | 2904 fps | 99.6% |
| Bofors RP3 | <<locked>> | 96% | 57,406 psi | 90% | 2923 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 54,201 psi | 85% | 2831 fps | 96.6% |
| Hodgdon Benchmark | <<locked>> | 88% | 57,377 psi | 90% | 2825 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 54,447 psi | 85% | 2871 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 56,637 psi | 89% | 2972 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 84% | 55,999 psi | 88% | 2835 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 57,159 psi | 90% | 2864 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 54,897 psi | 86% | 2881 fps | 99.1% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 54,085 psi | 85% | 2923 fps | 97.4% |
| Hodgdon H4350 | <<locked>> | 98% | 55,477 psi | 87% | 2890 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 90% | 56,724 psi | 89% | 2897 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,600 psi | 71% | 2756 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 55,970 psi | 88% | 2930 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 55,376 psi | 87% | 2959 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,940 psi | 55% | 1726 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 54,650 psi | 86% | 2851 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 56,449 psi | 88% | 2881 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 56,710 psi | 89% | 2867 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 92% | 57,058 psi | 89% | 2848 fps | 97.6% |
| IMR 4198 | <<locked>> | 84% | 57,058 psi | 89% | 2749 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 50,923 psi | 80% | 2802 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 98% | 56,347 psi | 88% | 2867 fps | 97.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,979 psi | 75% | 2808 fps | 98.6% |
| IMR 4895 | <<locked>> | 92% | 55,463 psi | 87% | 2910 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 88% | 55,274 psi | 87% | 2841 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 55,419 psi | 87% | 2828 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 55,405 psi | 87% | 2861 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 56,246 psi | 88% | 2818 fps | 99.9% |
| Lovex S062 | <<locked>> | 94% | 56,072 psi | 88% | 2861 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 55,288 psi | 87% | 2858 fps | 98.5% |
| Lovex S070ᴾ | <<locked>> | 100% | 52,649 psi | 83% | 2838 fps | 97.2% |
| Norma 201 | <<locked>> | 90% | 54,781 psi | 86% | 2831 fps | 100% |
| Norma 202 | <<locked>> | 90% | 55,419 psi | 87% | 2838 fps | 100% |
| Norma 203B | <<locked>> | 94% | 56,565 psi | 89% | 2913 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 50,270 psi | 79% | 2861 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 94% | 57,421 psi | 90% | 2943 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,269 psi | 77% | 2851 fps | 97.2% |
| Ramshot TAC | <<locked>> | 88% | 55,854 psi | 88% | 2858 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,317 psi | 87% | 2881 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 86% | 56,434 psi | 88% | 2841 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,259 psi | 55% | 1765 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,882 psi | 86% | 2822 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 55,477 psi | 87% | 2861 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 54,346 psi | 85% | 2943 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 57,580 psi | 90% | 3028 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,328 psi | 79% | 2890 fps | 98.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,024 psi | 80% | 2917 fps | 98.5% |
| Rottweil R 901 | <<locked>> | 88% | 55,390 psi | 87% | 2812 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 55,201 psi | 87% | 2828 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 57,000 psi | 89% | 2907 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 54,201 psi | 85% | 2831 fps | 96.6% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 55,288 psi | 87% | 2858 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 55,405 psi | 87% | 2861 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 56,072 psi | 88% | 2861 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 52,649 psi | 83% | 2838 fps | 97.2% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,592 psi | 86% | 2792 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,463 psi | 87% | 2923 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 54,404 psi | 85% | 2769 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 53,940 psi | 85% | 2835 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 54,708 psi | 86% | 2861 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 56,840 psi | 89% | 2776 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 56,739 psi | 89% | 2769 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 56,086 psi | 88% | 2812 fps | 97.4% |
| Somchem S321 | <<locked>> | 86% | 56,652 psi | 89% | 2877 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 55,927 psi | 88% | 2772 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 57,246 psi | 90% | 2877 fps | 99.9% |
| Somchem S355 | <<locked>> | 98% | 57,363 psi | 90% | 2907 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,643 psi | 70% | 2808 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 86% | 56,536 psi | 89% | 2736 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 56,913 psi | 89% | 2759 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 54,636 psi | 86% | 2795 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 55,767 psi | 87% | 2812 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 55,593 psi | 87% | 2838 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,750 psi | 83% | 2858 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 88% | 55,854 psi | 88% | 2841 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 57,493 psi | 90% | 2858 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,735 psi | 81% | 2864 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,275 psi | 58% | 2671 fps | 96.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 53,867 psi | 84% | 2848 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 55,434 psi | 87% | 2887 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 54,360 psi | 85% | 2930 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 90% | 54,360 psi | 85% | 2867 fps | 100% |
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 2015 | <<locked>> | 80% | 44,411 psi | 70% | 2605 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,341 psi | 76% | 2713 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,521 psi | 57% | 2516 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,482 psi | 68% | 2667 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 48,414 psi | 76% | 2694 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 34,548 psi | 54% | 2503 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 35,360 psi | 55% | 2582 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 52,968 psi | 83% | 2687 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 53,359 psi | 84% | 2710 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 40,872 psi | 64% | 2625 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 34,751 psi | 54% | 2474 fps | 95.8% |
| ADI AR 2219 | <<locked>> | 80% | 53,737 psi | 84% | 2805 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,004 psi | 67% | 2638 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 42,496 psi | 67% | 2631 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,154 psi | 79% | 2841 fps | 99.8% |
| Alliant Power Pro 2000-MR | 54.1 gr | 80% | 36,912 psi | 58% | 2638 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,852 psi | 53% | 2490 fps | 97.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,125 psi | 79% | 2700 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,651 psi | 57% | 2552 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,216 psi | 57% | 2598 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 82% | 31,299 psi | 49% | 2500 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 96% | 30,748 psi | 48% | 2487 fps | 95% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,040 psi | 82% | 2680 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,871 psi | 62% | 2621 fps | 96.9% |
| Bofors RP3 | <<locked>> | 80% | 33,156 psi | 52% | 2487 fps | 97.2% |
| Bofors RP7 | <<locked>> | 94% | 47,718 psi | 75% | 2726 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,860 psi | 70% | 2631 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,336 psi | 65% | 2654 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,498 psi | 71% | 2789 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 80% | 49,139 psi | 77% | 2736 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 49,879 psi | 78% | 2759 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 36,811 psi | 58% | 2549 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 94% | 44,208 psi | 69% | 2753 fps | 95% |
| Hodgdon H4350 | <<locked>> | 96% | 51,924 psi | 81% | 2835 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 41,234 psi | 65% | 2638 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,922 psi | 48% | 2438 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,985 psi | 58% | 2598 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 96% | 47,892 psi | 75% | 2835 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,875 psi | 41% | 1539 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,624 psi | 62% | 2589 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 40,306 psi | 63% | 2635 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,448 psi | 57% | 2507 fps | 96.6% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,268 psi | 74% | 2687 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 50,633 psi | 79% | 2664 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 47,703 psi | 75% | 2749 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,949 psi | 74% | 2713 fps | 95.5% |
| IMR 4831 | <<locked>> | 90% | 34,316 psi | 54% | 2536 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 37,550 psi | 59% | 2585 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 80% | 43,004 psi | 67% | 2638 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 48,298 psi | 76% | 2720 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 39,363 psi | 62% | 2602 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 41,336 psi | 65% | 2569 fps | 98.3% |
| Lovex S062 | <<locked>> | 80% | 36,085 psi | 57% | 2510 fps | 98.3% |
| Lovex S065 | <<locked>> | 90% | 40,495 psi | 63% | 2598 fps | 95.4% |
| Lovex S070 | <<locked>> | 94% | 43,410 psi | 68% | 2677 fps | 95% |
| Norma 201 | <<locked>> | 80% | 39,929 psi | 63% | 2579 fps | 99% |
| Norma 202 | <<locked>> | 80% | 40,030 psi | 63% | 2589 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,027 psi | 56% | 2543 fps | 97% |
| Norma URP | <<locked>> | 90% | 36,085 psi | 57% | 2589 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 35,491 psi | 56% | 2552 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 96% | 43,207 psi | 68% | 2740 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 42,728 psi | 67% | 2635 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,018 psi | 66% | 2654 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,485 psi | 73% | 2687 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,034 psi | 41% | 1575 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,341 psi | 76% | 2723 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 42,786 psi | 67% | 2644 fps | 95.2% |
| ReloadSwiss RS 52 | 52.4 gr | 80% | 38,014 psi | 60% | 2648 fps | 97% |
| ReloadSwiss RS 60 | 53.2 gr | 80% | 31,096 psi | 49% | 2510 fps | 98% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 38,043 psi | 60% | 2661 fps | 95.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 38,711 psi | 61% | 2671 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 43,482 psi | 68% | 2621 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,768 psi | 59% | 2526 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 31,154 psi | 49% | 2431 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 94% | 47,718 psi | 75% | 2726 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,495 psi | 63% | 2598 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,363 psi | 62% | 2602 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 36,085 psi | 57% | 2510 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 94% | 43,410 psi | 68% | 2677 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,082 psi | 80% | 2740 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,416 psi | 51% | 2484 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,082 psi | 80% | 2723 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,857 psi | 64% | 2605 fps | 96.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,349 psi | 62% | 2592 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,510 psi | 65% | 2543 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,229 psi | 54% | 2405 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 45,759 psi | 72% | 2654 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 46,122 psi | 72% | 2713 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 41,075 psi | 64% | 2543 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,582 psi | 64% | 2605 fps | 98.1% |
| Somchem S355 | <<locked>> | 80% | 32,329 psi | 51% | 2444 fps | 96.3% |
| Somchem S365 | <<locked>> | 86% | 28,166 psi | 44% | 2421 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 47,094 psi | 74% | 2608 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,800 psi | 66% | 2539 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,101 psi | 58% | 2520 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,927 psi | 59% | 2526 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,618 psi | 48% | 2382 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 88% | 35,389 psi | 55% | 2533 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 42,859 psi | 67% | 2631 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,535 psi | 57% | 2513 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 37,014 psi | 58% | 2589 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 96% | 32,619 psi | 51% | 2559 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,372 psi | 49% | 2411 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 42,134 psi | 66% | 2674 fps | 99.7% |
| Winchester 760 | <<locked>> | 94% | 44,454 psi | 70% | 2756 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,609 psi | 61% | 2592 fps | 98.2% |
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 106 powders for 8 x 75 S loaded with the .323 | 180gr | Fox Classic Hunter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,028 fps; across all powders the maximum-charge window runs from 1,726 fps to 3,028 fps. Accurate 4350 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.323" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 8 x 75 S with the .323 | 180gr | Fox Classic Hunter they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.