Load Specifications
Load data in caliber 8 x 75 RS with .323 | 170gr | Woodleigh HS bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 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% | 48,124 psi | 87% | 2802 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 49,690 psi | 90% | 2864 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 48,399 psi | 88% | 2851 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 47,427 psi | 86% | 2910 fps | 98.4% |
| ADI AR 2206H | <<locked>> | 84% | 49,139 psi | 89% | 2874 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 88% | 47,079 psi | 85% | 2822 fps | 98.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 48,254 psi | 88% | 2828 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 82% | 48,283 psi | 88% | 2812 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 48,182 psi | 87% | 2976 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 46,775 psi | 85% | 2844 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 86% | 47,195 psi | 86% | 2858 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 98% | 49,342 psi | 90% | 2972 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 92% | 46,717 psi | 85% | 2949 fps | 99.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,333 psi | 68% | 2743 fps | 97.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,684 psi | 76% | 2900 fps | 96.7% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 48,428 psi | 88% | 2881 fps | 98.6% |
| Bofors RP3 | <<locked>> | 88% | 46,702 psi | 85% | 2851 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 82% | 46,963 psi | 85% | 2848 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 88% | 47,863 psi | 87% | 2861 fps | 98% |
| Hodgdon H4895 | <<locked>> | 84% | 49,632 psi | 90% | 2887 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,660 psi | 88% | 2904 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 48,312 psi | 88% | 2910 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,302 psi | 64% | 1811 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 47,616 psi | 86% | 2838 fps | 99.5% |
| IMR 3031 | <<locked>> | 84% | 49,095 psi | 89% | 2877 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 49,487 psi | 90% | 2854 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 86% | 49,690 psi | 90% | 2828 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 49,429 psi | 90% | 2854 fps | 96% |
| IMR 4831 | <<locked>> | 98% | 48,211 psi | 87% | 2907 fps | 98.6% |
| IMR 4895 | <<locked>> | 86% | 48,356 psi | 88% | 2894 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 82% | 48,254 psi | 88% | 2828 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 84% | 48,312 psi | 88% | 2851 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 49,037 psi | 89% | 2805 fps | 99.4% |
| Lovex S062 | <<locked>> | 88% | 49,414 psi | 90% | 2858 fps | 99.9% |
| Lovex S065 | <<locked>> | 94% | 48,617 psi | 88% | 2848 fps | 97.3% |
| Lovex S070 | <<locked>> | 96% | 49,356 psi | 90% | 2881 fps | 96.4% |
| Norma 201 | <<locked>> | 84% | 47,979 psi | 87% | 2822 fps | 99.8% |
| Norma 202 | <<locked>> | 84% | 48,327 psi | 88% | 2828 fps | 100% |
| Norma 203B | <<locked>> | 88% | 49,632 psi | 90% | 2904 fps | 99.5% |
| Norma URP | <<locked>> | 96% | 47,108 psi | 85% | 2904 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 88% | 49,690 psi | 90% | 2923 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 98% | 49,095 psi | 89% | 2946 fps | 97.1% |
| Ramshot TAC | <<locked>> | 82% | 48,298 psi | 88% | 2835 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 47,630 psi | 86% | 2851 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,636 psi | 65% | 1854 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 48,283 psi | 88% | 2841 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 46,833 psi | 85% | 2917 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 49,806 psi | 90% | 3015 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 46,992 psi | 85% | 2927 fps | 98.1% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 47,268 psi | 86% | 2946 fps | 97.7% |
| Rottweil R 901 | <<locked>> | 82% | 49,182 psi | 89% | 2815 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 48,486 psi | 88% | 2822 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 92% | 49,850 psi | 90% | 2900 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 48,617 psi | 88% | 2848 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 48,312 psi | 88% | 2851 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 49,414 psi | 90% | 2858 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 96% | 49,356 psi | 90% | 2881 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 48,370 psi | 88% | 2907 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 49,719 psi | 90% | 2864 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 47,413 psi | 86% | 2841 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 49,487 psi | 90% | 2769 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 49,530 psi | 90% | 2769 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 48,544 psi | 88% | 2792 fps | 95.9% |
| Somchem S335 | <<locked>> | 84% | 48,979 psi | 89% | 2772 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 49,327 psi | 90% | 2858 fps | 99.4% |
| Somchem S355 | <<locked>> | 90% | 47,413 psi | 86% | 2848 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,848 psi | 87% | 2959 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 49,719 psi | 90% | 2759 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 47,921 psi | 87% | 2795 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 48,863 psi | 89% | 2812 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 48,428 psi | 88% | 2828 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 49,414 psi | 90% | 2900 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 82% | 48,428 psi | 88% | 2825 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 86% | 47,152 psi | 86% | 2802 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 48,486 psi | 88% | 2904 fps | 98.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,567 psi | 74% | 2828 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 49,792 psi | 90% | 2881 fps | 99.8% |
| Winchester 748 | <<locked>> | 82% | 48,008 psi | 87% | 2871 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,359 psi | 61% | 2720 fps | 96.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 47,123 psi | 86% | 2848 fps | 99.5% |
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% | 39,581 psi | 72% | 2657 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,485 psi | 84% | 2812 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 37,405 psi | 68% | 2644 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 35,853 psi | 65% | 2674 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 43,192 psi | 78% | 2762 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 36,767 psi | 67% | 2605 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,237 psi | 82% | 2772 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 45,237 psi | 82% | 2766 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,175 psi | 71% | 2782 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,230 psi | 66% | 2628 fps | 97.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,943 psi | 71% | 2694 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 88% | 36,158 psi | 66% | 2684 fps | 95.5% |
| Alliant Reloder-17 | 57.5 gr | 80% | 31,314 psi | 57% | 2582 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,096 psi | 56% | 2575 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,783 psi | 70% | 2831 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,380 psi | 77% | 2762 fps | 97.4% |
| Bofors RP3 | <<locked>> | 80% | 35,766 psi | 65% | 2631 fps | 97.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,005 psi | 80% | 2795 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 80% | 36,738 psi | 67% | 2631 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 43,540 psi | 79% | 2776 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 31,140 psi | 56% | 2523 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,595 psi | 72% | 2743 fps | 98.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,295 psi | 48% | 1621 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,785 psi | 76% | 2723 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 43,178 psi | 78% | 2776 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,580 psi | 70% | 2641 fps | 97.1% |
| IMR 4166 Enduron | <<locked>> | 84% | 46,586 psi | 85% | 2772 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,383 psi | 84% | 2799 fps | 95.2% |
| IMR 4831 | <<locked>> | 88% | 34,708 psi | 63% | 2628 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 39,871 psi | 72% | 2723 fps | 97.9% |
| IMR 8208 XBR | <<locked>> | 80% | 45,237 psi | 82% | 2772 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 42,221 psi | 77% | 2743 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 43,337 psi | 79% | 2700 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 38,406 psi | 70% | 2648 fps | 98.6% |
| Lovex S065 | <<locked>> | 88% | 40,495 psi | 73% | 2687 fps | 95.2% |
| Lovex S070 | <<locked>> | 94% | 46,253 psi | 84% | 2825 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 42,337 psi | 77% | 2717 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 42,540 psi | 77% | 2726 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,305 psi | 70% | 2680 fps | 97.5% |
| Norma URP | <<locked>> | 88% | 36,158 psi | 66% | 2674 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 37,840 psi | 69% | 2690 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 94% | 43,120 psi | 78% | 2828 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 45,208 psi | 82% | 2776 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,657 psi | 81% | 2799 fps | 98.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,498 psi | 48% | 1657 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,467 psi | 77% | 2730 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,712 psi | 74% | 2795 fps | 97.6% |
| ReloadSwiss RS 60 | 57.5 gr | 80% | 33,315 psi | 60% | 2654 fps | 98.6% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 38,189 psi | 69% | 2749 fps | 95.8% |
| ReloadSwiss RS 70 | 67.1 gr | 92% | 41,162 psi | 75% | 2818 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 46,325 psi | 84% | 2766 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,248 psi | 73% | 2664 fps | 98.9% |
| Rottweil R 903 | <<locked>> | 80% | 33,634 psi | 61% | 2569 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,495 psi | 73% | 2687 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,221 psi | 77% | 2743 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 38,406 psi | 70% | 2648 fps | 98.6% |
| Shooters World SW4350 | <<locked>> | 94% | 46,253 psi | 84% | 2825 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,650 psi | 63% | 2621 fps | 96.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,410 psi | 79% | 2746 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,742 psi | 76% | 2730 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,671 psi | 79% | 2671 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,245 psi | 66% | 2533 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,614 psi | 83% | 2743 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 43,308 psi | 79% | 2674 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,163 psi | 78% | 2746 fps | 98.5% |
| Somchem S355 | <<locked>> | 80% | 34,592 psi | 63% | 2579 fps | 96.9% |
| Somchem S365 | <<locked>> | 84% | 28,427 psi | 52% | 2503 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 43,961 psi | 80% | 2667 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,581 psi | 72% | 2654 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,248 psi | 73% | 2657 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,851 psi | 60% | 2516 fps | 97.7% |
| Vihtavuori N160 | <<locked>> | 88% | 37,956 psi | 69% | 2677 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 45,310 psi | 82% | 2769 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 38,827 psi | 70% | 2648 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 37,304 psi | 68% | 2677 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 94% | 33,228 psi | 60% | 2654 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 31,314 psi | 57% | 2490 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 44,918 psi | 82% | 2818 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 31,314 psi | 57% | 2654 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,133 psi | 75% | 2733 fps | 98.6% |
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 80 powders for 8 x 75 RS loaded with the .323 | 170gr | Woodleigh HS. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,015 fps; across all powders the maximum-charge window runs from 1,811 fps to 3,015 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.323" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon Hybrid 100V 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, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for 8 x 75 RS with the .323 | 170gr | Woodleigh HS 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.