Load Specifications
Load data in caliber 8 x 75 RS with .323 | 196gr | Norma VULKAN bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and Somchem S365.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 47,152 psi | 86% | 2589 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,036 psi | 85% | 2589 fps | 96.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,135 psi | 80% | 2648 fps | 97.6% |
| Accurate 4064 | <<locked>> | 84% | 47,645 psi | 86% | 2641 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 46,760 psi | 85% | 2713 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 86% | 48,472 psi | 88% | 2664 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 46,644 psi | 85% | 2762 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 48,443 psi | 88% | 2743 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 48,646 psi | 88% | 2687 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 48,994 psi | 89% | 2703 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 94% | 48,327 psi | 88% | 2772 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 90% | 48,747 psi | 88% | 2799 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,047 psi | 76% | 2680 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,043 psi | 67% | 2582 fps | 96% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,166 psi | 86% | 2848 fps | 99.4% |
| Bofors RP3 | <<locked>> | 86% | 48,907 psi | 89% | 2700 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 49,066 psi | 89% | 2671 fps | 97.1% |
| Hodgdon H380 | <<locked>> | 86% | 49,588 psi | 90% | 2710 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 88% | 47,239 psi | 86% | 2726 fps | 97.4% |
| Hodgdon H4350 | <<locked>> | 92% | 48,646 psi | 88% | 2700 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 47,993 psi | 87% | 2703 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 47,398 psi | 86% | 2703 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 49,371 psi | 90% | 2792 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,752 psi | 65% | 1690 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 48,138 psi | 87% | 2657 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 46,876 psi | 85% | 2638 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 47,558 psi | 86% | 2638 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,123 psi | 86% | 2612 fps | 97.2% |
| IMR 4350 | <<locked>> | 94% | 49,429 psi | 90% | 2700 fps | 97.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 47,892 psi | 87% | 2651 fps | 97.3% |
| IMR 4831 | <<locked>> | 98% | 48,414 psi | 88% | 2723 fps | 99.5% |
| IMR 4895 | <<locked>> | 82% | 47,050 psi | 85% | 2680 fps | 99.8% |
| Lovex S062 | <<locked>> | 84% | 48,153 psi | 87% | 2648 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 47,413 psi | 86% | 2651 fps | 98.5% |
| Lovex S070 | <<locked>> | 92% | 48,138 psi | 87% | 2684 fps | 97.7% |
| Norma 201 | <<locked>> | 82% | 49,400 psi | 90% | 2657 fps | 100% |
| Norma 203B | <<locked>> | 84% | 48,298 psi | 88% | 2694 fps | 99.9% |
| Norma 204 | <<locked>> | 94% | 49,690 psi | 90% | 2743 fps | 96% |
| Norma MRPᴾ | <<locked>> | 100% | 46,978 psi | 85% | 2802 fps | 97.3% |
| Norma URP | <<locked>> | 94% | 49,443 psi | 90% | 2756 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 84% | 48,356 psi | 88% | 2713 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 94% | 48,298 psi | 88% | 2753 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,419 psi | 66% | 1732 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 46,818 psi | 85% | 2641 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 49,211 psi | 89% | 2762 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 48,544 psi | 88% | 2799 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 49,734 psi | 90% | 2789 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 49,081 psi | 89% | 2812 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 82% | 47,210 psi | 86% | 2615 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 49,066 psi | 89% | 2697 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,530 psi | 90% | 2769 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 90% | 49,066 psi | 89% | 2671 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 47,413 psi | 86% | 2651 fps | 98.5% |
| Shooters World Precision | <<locked>> | 84% | 48,153 psi | 87% | 2648 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 48,138 psi | 87% | 2684 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 47,297 psi | 86% | 2700 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 49,081 psi | 89% | 2684 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 48,066 psi | 87% | 2559 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 47,195 psi | 86% | 2602 fps | 97.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,066 psi | 89% | 2762 fps | 96.3% |
| Somchem S355 | <<locked>> | 88% | 49,313 psi | 89% | 2690 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 47,645 psi | 86% | 2762 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 47,166 psi | 86% | 2697 fps | 96.7% |
| Unknown powder | <<locked>> | 90% | 47,210 psi | 86% | 2710 fps | 98.9% |
| Vihtavuori N135 | <<locked>> | 82% | 46,833 psi | 85% | 2582 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 47,311 psi | 86% | 2595 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 47,442 psi | 86% | 2625 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 48,370 psi | 88% | 2700 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 84% | 48,646 psi | 88% | 2635 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 47,674 psi | 87% | 2707 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,412 psi | 84% | 2753 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 48,240 psi | 88% | 2680 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 47,239 psi | 86% | 2726 fps | 97.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,521 psi | 68% | 2700 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 98% | 48,965 psi | 89% | 2713 fps | 95.9% |
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% | 44,237 psi | 80% | 2546 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 44,106 psi | 80% | 2539 fps | 95.6% |
| Accurate 3100 | <<locked>> | 94% | 36,071 psi | 65% | 2490 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 41,872 psi | 76% | 2546 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,980 psi | 56% | 2385 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 40,393 psi | 73% | 2516 fps | 98.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,381 psi | 79% | 2700 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 45,353 psi | 82% | 2687 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,277 psi | 73% | 2539 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,178 psi | 78% | 2602 fps | 99.2% |
| Alliant Reloder-16 | 52.8 gr | 80% | 31,328 psi | 57% | 2398 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,766 psi | 63% | 2516 fps | 98.5% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,267 psi | 49% | 2313 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,722 psi | 63% | 2523 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,141 psi | 60% | 2533 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 40,118 psi | 73% | 2546 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 43,468 psi | 79% | 2569 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 40,843 psi | 74% | 2549 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 82% | 38,479 psi | 70% | 2552 fps | 95% |
| Hodgdon H4350 | <<locked>> | 90% | 45,585 psi | 83% | 2648 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,703 psi | 52% | 2300 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,655 psi | 76% | 2602 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 42,888 psi | 78% | 2667 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,774 psi | 49% | 1512 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,569 psi | 77% | 2559 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 44,135 psi | 80% | 2595 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,697 psi | 72% | 2493 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 39,320 psi | 71% | 2457 fps | 95.1% |
| IMR 4350 | <<locked>> | 88% | 41,046 psi | 74% | 2546 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,856 psi | 72% | 2500 fps | 95.2% |
| IMR 4831 | <<locked>> | 84% | 31,125 psi | 56% | 2372 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 44,251 psi | 80% | 2631 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 42,424 psi | 77% | 2549 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 34,911 psi | 63% | 2398 fps | 95.2% |
| Lovex S070 | <<locked>> | 86% | 39,972 psi | 73% | 2530 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 46,528 psi | 84% | 2608 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,540 psi | 77% | 2589 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 46,499 psi | 84% | 2687 fps | 95.1% |
| Norma MRP | <<locked>> | 96% | 41,133 psi | 75% | 2684 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 31,314 psi | 57% | 2388 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 42,163 psi | 77% | 2605 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 37,202 psi | 68% | 2533 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,064 psi | 49% | 1545 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,118 psi | 75% | 2533 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,905 psi | 83% | 2710 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,999 psi | 67% | 2579 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,866 psi | 60% | 2454 fps | 95.7% |
| ReloadSwiss RS 70 | 60.6 gr | 84% | 35,041 psi | 64% | 2516 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 44,237 psi | 80% | 2562 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,739 psi | 68% | 2493 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 98% | 46,514 psi | 84% | 2717 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 86% | 43,468 psi | 79% | 2569 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,911 psi | 63% | 2398 fps | 95.2% |
| Shooters World Precision | <<locked>> | 80% | 42,424 psi | 77% | 2549 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 39,972 psi | 73% | 2530 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,769 psi | 70% | 2543 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,064 psi | 84% | 2631 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,827 psi | 72% | 2425 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,827 psi | 70% | 2444 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,079 psi | 84% | 2710 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 38,392 psi | 70% | 2493 fps | 99.1% |
| Somchem S365 | 53.9 gr | 80% | 28,094 psi | 51% | 2343 fps | 97.6% |
| Somchem S385 | <<locked>> | 94% | 41,481 psi | 75% | 2592 fps | 95.2% |
| Unknown powder | <<locked>> | 80% | 33,968 psi | 62% | 2441 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 80% | 43,947 psi | 80% | 2536 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,454 psi | 81% | 2549 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,564 psi | 66% | 2431 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 32,648 psi | 59% | 2388 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 42,902 psi | 78% | 2543 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,198 psi | 58% | 2392 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 86% | 29,312 psi | 53% | 2385 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,271 psi | 59% | 2365 fps | 97.9% |
| Winchester 760 | <<locked>> | 82% | 38,479 psi | 70% | 2552 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,325 psi | 50% | 2388 fps | 95.8% |
| Winchester Supreme 780 | <<locked>> | 96% | 45,658 psi | 83% | 2657 fps | 95% |
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 75 powders for 8 x 75 RS loaded with the .323 | 196gr | Norma VULKAN. Alliant Reloder-26 delivers the highest muzzle velocity at 2,848 fps; across all powders the maximum-charge window runs from 1,690 fps to 2,848 fps. Accurate 3100 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 65–90 %, leaving at least 10 % headroom. The 196.0 gr projectile in 0.323" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-25 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. Alliant Reloder-16, ReloadSwiss RS 70, Somchem S365 rank at the top here: for 8 x 75 RS with the .323 | 196gr | Norma VULKAN 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.