Load Specifications
Bullet:.323 | 198gr | Brenneke TIG
Bullet Manufacturer:Brenneke
Bullet Weight:198 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:1:13.5
Load data in caliber 8 x 75 S with .323 | 198gr | Brenneke TIG bullet and 103 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Hodgdon H414.
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 2015 | <<locked>> | 84% | 57,493 psi | 90% | 2667 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,507 psi | 89% | 2697 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,273 psi | 85% | 2713 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,274 psi | 87% | 2707 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,366 psi | 68% | 2618 fps | 97.4% |
| Accurate 4064 | <<locked>> | 90% | 56,550 psi | 89% | 2746 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,565 psi | 89% | 2841 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 56,478 psi | 89% | 2779 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 57,493 psi | 90% | 2779 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 50,966 psi | 80% | 2762 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,448 psi | 87% | 2726 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,695 psi | 89% | 2697 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,260 psi | 88% | 2900 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 50,763 psi | 80% | 2762 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,740 psi | 90% | 2799 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,694 psi | 86% | 2772 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,450 psi | 90% | 2894 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,172 psi | 86% | 2877 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,009 psi | 78% | 2753 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,133 psi | 64% | 2644 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,093 psi | 72% | 2808 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,246 psi | 88% | 2795 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 54,882 psi | 86% | 2769 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 54,955 psi | 86% | 2743 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,913 psi | 89% | 2707 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,853 psi | 86% | 2756 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,130 psi | 90% | 2858 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,869 psi | 88% | 2785 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 96% | 55,448 psi | 87% | 2838 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 94% | 56,014 psi | 88% | 2799 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 86% | 57,087 psi | 89% | 2785 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,592 psi | 84% | 2766 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,666 psi | 89% | 2822 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,869 psi | 88% | 2874 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,737 psi | 56% | 1673 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,708 psi | 86% | 2740 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 57,348 psi | 90% | 2762 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,000 psi | 89% | 2762 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,840 psi | 89% | 2746 fps | 98.7% |
| IMR 4350 | <<locked>> | 98% | 55,143 psi | 86% | 2769 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,724 psi | 89% | 2772 fps | 98.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,637 psi | 89% | 2825 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 56,028 psi | 88% | 2799 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,448 psi | 87% | 2726 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,376 psi | 88% | 2749 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,941 psi | 88% | 2707 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 56,840 psi | 89% | 2753 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,275 psi | 88% | 2766 fps | 99.5% |
| Lovex S070 | <<locked>> | 98% | 57,261 psi | 90% | 2805 fps | 99% |
| Norma 201 | <<locked>> | 86% | 55,303 psi | 87% | 2723 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,883 psi | 88% | 2723 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,580 psi | 90% | 2812 fps | 100% |
| Norma 204 | <<locked>> | 98% | 55,869 psi | 88% | 2822 fps | 97.2% |
| Norma MRPᴾ | <<locked>> | 100% | 46,137 psi | 72% | 2769 fps | 97% |
| Norma URP | <<locked>> | 98% | 55,390 psi | 87% | 2828 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 54,389 psi | 85% | 2785 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 57,595 psi | 90% | 2874 fps | 99.5% |
| Ramshot TAC | <<locked>> | 84% | 55,521 psi | 87% | 2749 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,347 psi | 87% | 2766 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,115 psi | 88% | 2730 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,201 psi | 57% | 1709 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,043 psi | 88% | 2769 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,419 psi | 87% | 2841 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,868 psi | 86% | 2874 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,173 psi | 88% | 2864 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,434 psi | 87% | 2894 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 84% | 56,202 psi | 88% | 2700 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,941 psi | 88% | 2723 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,694 psi | 86% | 2759 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 48,762 psi | 76% | 2736 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 94% | 54,955 psi | 86% | 2743 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,275 psi | 88% | 2766 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,376 psi | 88% | 2749 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,840 psi | 89% | 2753 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,261 psi | 90% | 2805 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,536 psi | 89% | 2822 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,070 psi | 85% | 2730 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,984 psi | 86% | 2753 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,594 psi | 89% | 2657 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,014 psi | 89% | 2657 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,521 psi | 89% | 2723 fps | 98.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,298 psi | 76% | 2730 fps | 96.1% |
| Somchem S321 | <<locked>> | 82% | 56,666 psi | 89% | 2759 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,101 psi | 88% | 2657 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,348 psi | 90% | 2769 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,129 psi | 86% | 2759 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,316 psi | 84% | 2825 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,501 psi | 78% | 2717 fps | 97.2% |
| Vihtavuori N130 | <<locked>> | 82% | 56,289 psi | 88% | 2615 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,884 psi | 89% | 2638 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,724 psi | 87% | 2684 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,333 psi | 88% | 2700 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,391 psi | 88% | 2733 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,099 psi | 85% | 2769 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 55,898 psi | 88% | 2726 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,491 psi | 85% | 2700 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,869 psi | 89% | 2828 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,513 psi | 71% | 2720 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,302 psi | 85% | 2749 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,086 psi | 88% | 2772 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,724 psi | 87% | 2841 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,825 psi | 58% | 2661 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,839 psi | 86% | 2759 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% | 50,691 psi | 79% | 2579 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,613 psi | 68% | 2516 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,705 psi | 79% | 2664 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,424 psi | 66% | 2493 fps | 95.1% |
| Accurate 3100 | <<locked>> | 94% | 35,259 psi | 55% | 2457 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 41,278 psi | 65% | 2516 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,313 psi | 48% | 2352 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 46,775 psi | 73% | 2628 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 39,885 psi | 63% | 2487 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 47,877 psi | 75% | 2707 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,820 psi | 77% | 2628 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,676 psi | 78% | 2608 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,786 psi | 67% | 2671 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 47,703 psi | 75% | 2710 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,711 psi | 62% | 2510 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,409 psi | 66% | 2569 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,864 psi | 48% | 2369 fps | 95.2% |
| Alliant Reloder-17 | 55.5 gr | 80% | 34,214 psi | 54% | 2487 fps | 98.3% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,021 psi | 74% | 2700 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,543 psi | 45% | 2336 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 90% | 32,547 psi | 51% | 2500 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,209 psi | 72% | 2638 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 39,421 psi | 62% | 2516 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 42,902 psi | 67% | 2539 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,459 psi | 79% | 2615 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,022 psi | 75% | 2657 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,156 psi | 83% | 2802 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,147 psi | 63% | 2520 fps | 97.7% |
| Hodgdon H414 | 58.4 gr | 86% | 39,842 psi | 62% | 2566 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 88% | 46,354 psi | 73% | 2641 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 47,210 psi | 74% | 2638 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,268 psi | 44% | 2274 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,395 psi | 68% | 2615 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 42,163 psi | 66% | 2635 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,571 psi | 42% | 1493 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,411 psi | 71% | 2592 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 47,398 psi | 74% | 2628 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,858 psi | 66% | 2516 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,324 psi | 69% | 2539 fps | 96.5% |
| IMR 4350 | <<locked>> | 90% | 42,931 psi | 67% | 2566 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,727 psi | 65% | 2520 fps | 95.7% |
| IMR 4831 | <<locked>> | 82% | 31,618 psi | 50% | 2369 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 43,482 psi | 68% | 2598 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 48,820 psi | 77% | 2628 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,383 psi | 73% | 2608 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,615 psi | 73% | 2562 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 41,872 psi | 66% | 2520 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 34,418 psi | 54% | 2369 fps | 95% |
| Lovex S070 | <<locked>> | 86% | 39,407 psi | 62% | 2497 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 45,919 psi | 72% | 2579 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,311 psi | 73% | 2585 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,800 psi | 66% | 2556 fps | 99.3% |
| Norma 204 | <<locked>> | 94% | 48,660 psi | 76% | 2707 fps | 95.7% |
| Norma MRP | <<locked>> | 96% | 40,292 psi | 63% | 2648 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 30,850 psi | 48% | 2359 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 41,539 psi | 65% | 2575 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 36,564 psi | 57% | 2503 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 48,863 psi | 77% | 2644 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,573 psi | 76% | 2664 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,620 psi | 82% | 2677 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,064 psi | 42% | 1529 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,509 psi | 63% | 2503 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,150 psi | 71% | 2674 fps | 99.4% |
| ReloadSwiss RS 60 | 55.5 gr | 80% | 36,419 psi | 57% | 2549 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,358 psi | 51% | 2425 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 34,476 psi | 54% | 2484 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 49,966 psi | 78% | 2612 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,642 psi | 68% | 2533 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,202 psi | 58% | 2464 fps | 99% |
| Rottweil R 905 | <<locked>> | 98% | 45,658 psi | 72% | 2680 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 86% | 42,902 psi | 67% | 2539 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,418 psi | 54% | 2369 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,383 psi | 73% | 2608 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,872 psi | 66% | 2520 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 39,407 psi | 62% | 2497 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,101 psi | 60% | 2513 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,282 psi | 74% | 2621 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,368 psi | 71% | 2602 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,195 psi | 74% | 2526 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,436 psi | 62% | 2402 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 40,756 psi | 64% | 2464 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 45,237 psi | 71% | 2677 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 53,084 psi | 83% | 2710 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,804 psi | 73% | 2526 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,065 psi | 74% | 2618 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 37,884 psi | 59% | 2467 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 27,673 psi | 43% | 2316 fps | 97.4% |
| Somchem S385 | <<locked>> | 96% | 43,352 psi | 68% | 2612 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 53,142 psi | 83% | 2575 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,587 psi | 75% | 2516 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,482 psi | 68% | 2510 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,918 psi | 69% | 2523 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,071 psi | 57% | 2405 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 32,039 psi | 50% | 2359 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 49,052 psi | 77% | 2628 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,264 psi | 66% | 2513 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 31,633 psi | 50% | 2362 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 86% | 28,776 psi | 45% | 2356 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,879 psi | 50% | 2336 fps | 97.7% |
| Winchester 748 | <<locked>> | 80% | 48,979 psi | 77% | 2674 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 40,030 psi | 63% | 2569 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,803 psi | 42% | 2352 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,875 psi | 70% | 2605 fps | 99.9% |
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 S loaded with the .323 | 198gr | Brenneke TIG. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,900 fps; across all powders the maximum-charge window runs from 1,673 fps to 2,900 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 (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 198.0 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 Power Pro Varmint 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-17, ReloadSwiss RS 60, Hodgdon H414 rank at the top here: for 8 x 75 S with the .323 | 198gr | Brenneke TIG 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.