Load Specifications
Bullet Manufacturer:Sellier & Bellot
Bullet Weight:196 gr
Bullet Diameter:0.323"
Bullet Length:<<locked>>
Caliber:8 x 68 S load data
Case Length (l3):2.657"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:86 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:25.6"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:12.5
Load data in caliber 8 x 68 S with .323 | 196gr | Sellier & Bellot HPC bullet and 106 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 ReloadSwiss RS 70.
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>> | 82% | 54,650 psi | 86% | 2664 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,058 psi | 89% | 2736 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,087 psi | 89% | 2792 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,087 psi | 89% | 2792 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 56,884 psi | 89% | 2753 fps | 98.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,961 psi | 69% | 2661 fps | 97.7% |
| Accurate 4064 | <<locked>> | 90% | 57,305 psi | 90% | 2789 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,305 psi | 90% | 2884 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 57,159 psi | 90% | 2818 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,694 psi | 86% | 2772 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,793 psi | 81% | 2808 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,956 psi | 88% | 2766 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,406 psi | 90% | 2736 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,087 psi | 89% | 2946 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,969 psi | 86% | 2795 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,361 psi | 87% | 2815 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,665 psi | 86% | 2887 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,869 psi | 88% | 2917 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,604 psi | 79% | 2799 fps | 96.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,887 psi | 66% | 2690 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,927 psi | 58% | 2592 fps | 96.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,963 psi | 74% | 2858 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,029 psi | 89% | 2838 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 55,506 psi | 87% | 2808 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,434 psi | 87% | 2785 fps | 98.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,653 psi | 90% | 2746 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,535 psi | 87% | 2799 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 56,130 psi | 88% | 2746 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,405 psi | 88% | 2825 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 94% | 57,725 psi | 90% | 2904 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 96% | 54,679 psi | 86% | 2812 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 84% | 54,201 psi | 85% | 2779 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,404 psi | 85% | 2808 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 57,566 psi | 90% | 2864 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,869 psi | 89% | 2923 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,882 psi | 56% | 1696 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 54,375 psi | 85% | 2766 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 56,550 psi | 89% | 2785 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,869 psi | 89% | 2792 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 56,115 psi | 88% | 2769 fps | 98.8% |
| IMR 4350 | <<locked>> | 98% | 55,767 psi | 87% | 2812 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,232 psi | 90% | 2815 fps | 98.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,329 psi | 80% | 2782 fps | 99.8% |
| IMR 4895 | <<locked>> | 88% | 56,724 psi | 89% | 2841 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,956 psi | 88% | 2766 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,087 psi | 89% | 2792 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,362 psi | 88% | 2743 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,464 psi | 90% | 2795 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,739 psi | 89% | 2808 fps | 99.6% |
| Lovex S070 | <<locked>> | 96% | 54,346 psi | 85% | 2795 fps | 98.8% |
| Norma 201 | <<locked>> | 86% | 55,811 psi | 87% | 2762 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,362 psi | 88% | 2759 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,549 psi | 85% | 2802 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,420 psi | 88% | 2864 fps | 97.5% |
| Norma MRPᴾ | <<locked>> | 100% | 46,833 psi | 73% | 2815 fps | 97.4% |
| Norma URP | <<locked>> | 98% | 56,115 psi | 88% | 2871 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 55,216 psi | 87% | 2828 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 54,665 psi | 86% | 2867 fps | 99.3% |
| Ramshot TAC | <<locked>> | 84% | 56,275 psi | 88% | 2795 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,985 psi | 88% | 2808 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,710 psi | 89% | 2769 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,347 psi | 57% | 1736 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,521 psi | 89% | 2805 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,144 psi | 88% | 2884 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,608 psi | 87% | 2913 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,087 psi | 89% | 2907 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,159 psi | 88% | 2936 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 56,840 psi | 89% | 2740 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,420 psi | 88% | 2762 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,651 psi | 87% | 2802 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 53,548 psi | 84% | 2782 fps | 95.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,356 psi | 77% | 2779 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 94% | 55,434 psi | 87% | 2785 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,739 psi | 89% | 2808 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,087 psi | 89% | 2792 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,464 psi | 90% | 2795 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,346 psi | 85% | 2795 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,319 psi | 90% | 2864 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,911 psi | 86% | 2772 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,593 psi | 87% | 2792 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,145 psi | 90% | 2694 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,711 psi | 90% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,159 psi | 90% | 2762 fps | 98.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,878 psi | 77% | 2772 fps | 96.4% |
| Somchem S321 | <<locked>> | 82% | 57,319 psi | 90% | 2799 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,565 psi | 89% | 2694 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,317 psi | 85% | 2759 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,753 psi | 87% | 2799 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,288 psi | 85% | 2867 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,285 psi | 79% | 2762 fps | 97.5% |
| Unknown powder | <<locked>> | 96% | 56,985 psi | 89% | 2874 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 82% | 56,942 psi | 89% | 2654 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,450 psi | 90% | 2677 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,333 psi | 88% | 2720 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,043 psi | 89% | 2740 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,174 psi | 90% | 2776 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,839 psi | 86% | 2812 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 56,420 psi | 88% | 2766 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,042 psi | 86% | 2736 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 57,508 psi | 90% | 2867 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,224 psi | 72% | 2762 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,027 psi | 86% | 2789 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 57,290 psi | 90% | 2822 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 57,725 psi | 90% | 2904 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,405 psi | 59% | 2710 fps | 99.9% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,388 psi | 82% | 2779 fps | 96.8% |
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% | 51,372 psi | 81% | 2618 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,237 psi | 69% | 2556 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,980 psi | 78% | 2694 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,980 psi | 78% | 2694 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 43,947 psi | 69% | 2546 fps | 95.7% |
| Accurate 3100 | <<locked>> | 94% | 35,940 psi | 56% | 2503 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 41,858 psi | 66% | 2559 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,806 psi | 48% | 2395 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 47,282 psi | 74% | 2667 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 40,190 psi | 63% | 2523 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 96% | 45,498 psi | 71% | 2697 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,356 psi | 77% | 2667 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,386 psi | 79% | 2648 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,439 psi | 68% | 2717 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,059 psi | 63% | 2546 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,960 psi | 67% | 2612 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,154 psi | 49% | 2408 fps | 95.6% |
| Alliant Reloder-17 | 56.7 gr | 80% | 34,766 psi | 54% | 2530 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 96% | 44,585 psi | 70% | 2687 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,122 psi | 43% | 2323 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,606 psi | 54% | 2533 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,011 psi | 52% | 2546 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,615 psi | 73% | 2677 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 39,943 psi | 63% | 2552 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 40,712 psi | 64% | 2530 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,995 psi | 80% | 2654 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,733 psi | 76% | 2700 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 52,460 psi | 82% | 2697 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,669 psi | 64% | 2559 fps | 98% |
| Hodgdon H414 | <<locked>> | 82% | 38,493 psi | 60% | 2566 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 90% | 45,600 psi | 71% | 2661 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 47,790 psi | 75% | 2677 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,689 psi | 45% | 2313 fps | 96.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,437 psi | 65% | 2608 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 42,728 psi | 67% | 2680 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,672 psi | 42% | 1512 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,583 psi | 67% | 2572 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 43,918 psi | 69% | 2602 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,465 psi | 62% | 2500 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 39,175 psi | 61% | 2467 fps | 95.2% |
| IMR 4350 | <<locked>> | 88% | 40,901 psi | 64% | 2556 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,697 psi | 62% | 2507 fps | 95.3% |
| IMR 4831 | <<locked>> | 84% | 30,980 psi | 49% | 2382 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 44,048 psi | 69% | 2638 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 49,356 psi | 77% | 2667 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,934 psi | 74% | 2648 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,181 psi | 74% | 2602 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 42,409 psi | 66% | 2562 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 34,911 psi | 55% | 2411 fps | 95.4% |
| Lovex S070 | <<locked>> | 84% | 37,449 psi | 59% | 2487 fps | 95% |
| Norma 201 | <<locked>> | 80% | 46,514 psi | 73% | 2621 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,688 psi | 73% | 2621 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,351 psi | 66% | 2598 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 46,325 psi | 73% | 2697 fps | 95.2% |
| Norma MRP | <<locked>> | 96% | 41,002 psi | 64% | 2697 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 31,140 psi | 49% | 2395 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 42,163 psi | 66% | 2618 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 37,028 psi | 58% | 2543 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 49,429 psi | 77% | 2687 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,008 psi | 77% | 2700 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,272 psi | 83% | 2720 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,151 psi | 43% | 1552 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,959 psi | 64% | 2543 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,701 psi | 72% | 2717 fps | 99.6% |
| ReloadSwiss RS 60 | 56.7 gr | 80% | 36,999 psi | 58% | 2592 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,721 psi | 51% | 2464 fps | 95.8% |
| ReloadSwiss RS 70 | 60.4 gr | 84% | 34,882 psi | 55% | 2526 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 50,386 psi | 79% | 2648 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,222 psi | 69% | 2572 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,536 psi | 59% | 2500 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 98% | 50,285 psi | 79% | 2730 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 98% | 46,340 psi | 73% | 2726 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 84% | 40,712 psi | 64% | 2530 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,911 psi | 55% | 2411 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,934 psi | 74% | 2648 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,409 psi | 66% | 2562 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 37,449 psi | 59% | 2487 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,566 psi | 60% | 2552 fps | 98.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,935 psi | 75% | 2664 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,832 psi | 72% | 2641 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,616 psi | 75% | 2562 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,813 psi | 62% | 2434 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,827 psi | 61% | 2457 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 45,905 psi | 72% | 2720 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 53,548 psi | 84% | 2746 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,355 psi | 74% | 2566 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,427 psi | 74% | 2654 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,435 psi | 60% | 2507 fps | 99.2% |
| Somchem S365 | <<locked>> | 80% | 27,963 psi | 44% | 2352 fps | 97.7% |
| Somchem S385 | <<locked>> | 94% | 41,307 psi | 65% | 2602 fps | 95.3% |
| Unknown powder | <<locked>> | 80% | 33,808 psi | 53% | 2451 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 53,548 psi | 84% | 2612 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,008 psi | 75% | 2552 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,918 psi | 69% | 2546 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,251 psi | 69% | 2556 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,405 psi | 57% | 2438 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 32,489 psi | 51% | 2398 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 49,588 psi | 78% | 2667 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,728 psi | 67% | 2552 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,039 psi | 50% | 2398 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 86% | 29,138 psi | 46% | 2395 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,155 psi | 50% | 2372 fps | 98% |
| Winchester 748 | <<locked>> | 80% | 53,388 psi | 84% | 2769 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 38,493 psi | 60% | 2566 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,209 psi | 43% | 2402 fps | 96% |
| Winchester Supreme 780 | <<locked>> | 96% | 45,513 psi | 71% | 2667 fps | 95.1% |
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 121 powders for 8 x 68 S loaded with the .323 | 196gr | Sellier & Bellot HPC. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,946 fps; across all powders the maximum-charge window runs from 1,696 fps to 2,946 fps. Accurate 3100 gives the best case fill at 100 %, and 121 of the 121 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 196.0 gr projectile in 0.323" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, ADI AR 2213 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, ReloadSwiss RS 70 rank at the top here: for 8 x 68 S with the .323 | 196gr | Sellier & Bellot HPC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2213, Bofors RP15, Hodgdon H4831 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.