Load Specifications
Bullet Manufacturer:SAKO
Bullet Weight:200 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:1:6.0
Load data in caliber 8 x 68 S with .323 | 200gr | Sako Hammerhead bullet and 108 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-16.
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 2495 | <<locked>> | 84% | 55,027 psi | 86% | 2700 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,201 psi | 85% | 2723 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,647 psi | 78% | 2753 fps | 99.2% |
| Accurate 4064 | <<locked>> | 86% | 55,245 psi | 87% | 2753 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,637 psi | 87% | 2858 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 54,650 psi | 86% | 2782 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 55,796 psi | 87% | 2789 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,869 psi | 89% | 2900 fps | 98.4% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 51,024 psi | 80% | 2831 fps | 95.9% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,840 psi | 89% | 2776 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,621 psi | 86% | 2907 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 56,318 psi | 88% | 2808 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 56,652 psi | 89% | 2831 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 56,536 psi | 89% | 2913 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,012 psi | 85% | 2887 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,912 psi | 88% | 2887 fps | 98.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,458 psi | 78% | 2831 fps | 97.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,615 psi | 73% | 2772 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,828 psi | 64% | 2690 fps | 98.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,084 psi | 83% | 2959 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,360 psi | 85% | 2799 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 45,368 psi | 71% | 2753 fps | 96.2% |
| Bofors RP3 | <<locked>> | 88% | 57,334 psi | 90% | 2828 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,458 psi | 78% | 2831 fps | 97.4% |
| Bofors RP7 | <<locked>> | 92% | 56,565 psi | 89% | 2808 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 82% | 56,782 psi | 89% | 2812 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 57,609 psi | 90% | 2841 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 54,404 psi | 85% | 2854 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 90% | 54,505 psi | 85% | 2815 fps | 98.3% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 54,491 psi | 85% | 2835 fps | 96.1% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 53,563 psi | 84% | 2818 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 82% | 55,230 psi | 87% | 2792 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 56,652 psi | 89% | 2835 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,303 psi | 87% | 2828 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,418 psi | 85% | 2890 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,201 psi | 57% | 1716 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 56,144 psi | 88% | 2789 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 55,811 psi | 87% | 2766 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 55,347 psi | 87% | 2769 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 54,505 psi | 85% | 2753 fps | 99.1% |
| IMR 4350 | <<locked>> | 96% | 57,377 psi | 90% | 2841 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,853 psi | 86% | 2785 fps | 99.1% |
| IMR 4831 | <<locked>> | 96% | 56,028 psi | 88% | 2848 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 54,491 psi | 85% | 2808 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 56,405 psi | 88% | 2828 fps | 96.7% |
| IMR 8208 XBR | <<locked>> | 82% | 56,840 psi | 89% | 2776 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 54,839 psi | 86% | 2756 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 57,043 psi | 89% | 2756 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 55,347 psi | 87% | 2762 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,781 psi | 86% | 2782 fps | 99.7% |
| Lovex S070 | <<locked>> | 94% | 56,014 psi | 88% | 2822 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,162 psi | 65% | 2605 fps | 97.8% |
| Norma 201 | <<locked>> | 84% | 56,797 psi | 89% | 2772 fps | 100% |
| Norma 202 | <<locked>> | 84% | 57,624 psi | 90% | 2769 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,941 psi | 88% | 2818 fps | 100% |
| Norma 204 | <<locked>> | 94% | 54,331 psi | 85% | 2838 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 52,228 psi | 82% | 2910 fps | 99% |
| Norma URP | <<locked>> | 94% | 54,491 psi | 85% | 2844 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 56,739 psi | 89% | 2844 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 56,652 psi | 89% | 2897 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 42,975 psi | 67% | 2687 fps | 96.3% |
| Ramshot TAC | <<locked>> | 82% | 57,029 psi | 89% | 2808 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 57,058 psi | 89% | 2822 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,869 psi | 58% | 1759 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 57,653 psi | 90% | 2828 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 57,566 psi | 90% | 2900 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 57,421 psi | 90% | 2930 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 55,463 psi | 87% | 2881 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 54,230 psi | 85% | 2910 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 57,624 psi | 90% | 2746 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 57,508 psi | 90% | 2776 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 57,174 psi | 90% | 2818 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 54,984 psi | 86% | 2812 fps | 97% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,940 psi | 86% | 2867 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 92% | 56,565 psi | 89% | 2808 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,781 psi | 86% | 2782 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,839 psi | 86% | 2756 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 55,347 psi | 87% | 2762 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 56,014 psi | 88% | 2822 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 55,071 psi | 86% | 2828 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,680 psi | 87% | 2785 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 56,478 psi | 89% | 2802 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,520 psi | 85% | 2661 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,129 psi | 86% | 2661 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,621 psi | 86% | 2736 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,433 psi | 85% | 2864 fps | 98.2% |
| Somchem S335 | <<locked>> | 84% | 57,363 psi | 90% | 2700 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,317 psi | 87% | 2772 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 57,159 psi | 90% | 2815 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 57,014 psi | 89% | 2812 fps | 96.5% |
| Somchem S365 | <<locked>> | 98% | 56,840 psi | 89% | 2890 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,825 psi | 87% | 2848 fps | 99% |
| Vihtavuori N133 | <<locked>> | 82% | 55,013 psi | 86% | 2644 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 57,638 psi | 90% | 2730 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,607 psi | 86% | 2703 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 54,998 psi | 86% | 2743 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 56,710 psi | 89% | 2838 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 48,080 psi | 75% | 2713 fps | 97.4% |
| Vihtavuori N530 | <<locked>> | 82% | 57,232 psi | 90% | 2776 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 56,304 psi | 88% | 2749 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 55,738 psi | 87% | 2844 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,243 psi | 82% | 2848 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 52,794 psi | 83% | 2897 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 56,420 psi | 88% | 2805 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,650 psi | 86% | 2858 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,843 psi | 66% | 2818 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 56,768 psi | 89% | 2815 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,199 psi | 82% | 2785 fps | 97.6% |
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% | 48,486 psi | 76% | 2612 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 41,916 psi | 66% | 2513 fps | 96% |
| Accurate 3100 | <<locked>> | 88% | 33,040 psi | 52% | 2431 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 45,890 psi | 72% | 2618 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,418 psi | 54% | 2474 fps | 97.5% |
| ADI AR 2206H | <<locked>> | 80% | 51,198 psi | 80% | 2730 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 43,555 psi | 68% | 2589 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 92% | 43,903 psi | 69% | 2674 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 98% | 47,674 psi | 75% | 2772 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,301 psi | 84% | 2726 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,514 psi | 74% | 2792 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,859 psi | 69% | 2615 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,789 psi | 73% | 2677 fps | 99.9% |
| Alliant Reloder-16 | 56.6 gr | 80% | 34,026 psi | 53% | 2487 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,319 psi | 60% | 2612 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 92% | 43,410 psi | 68% | 2671 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 96% | 43,265 psi | 68% | 2713 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,440 psi | 41% | 2300 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 94% | 33,794 psi | 53% | 2520 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 84% | 30,037 psi | 47% | 2464 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,010 psi | 80% | 2749 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 42,467 psi | 67% | 2697 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 43,990 psi | 69% | 2625 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 43,265 psi | 68% | 2713 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 39,059 psi | 61% | 2497 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,997 psi | 83% | 2759 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 44,440 psi | 70% | 2631 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 80% | 36,608 psi | 57% | 2523 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 82% | 42,163 psi | 66% | 2598 fps | 95.6% |
| Hodgdon H4831 | <<locked>> | 98% | 51,140 psi | 80% | 2782 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 50,009 psi | 78% | 2762 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 51,779 psi | 81% | 2740 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,473 psi | 49% | 2385 fps | 98.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,254 psi | 76% | 2723 fps | 100% |
| Hodgdon Superformance | 66.1 gr | 82% | 38,159 psi | 60% | 2585 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,021 psi | 42% | 1532 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,705 psi | 78% | 2694 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 52,359 psi | 82% | 2720 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,774 psi | 72% | 2618 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,124 psi | 75% | 2648 fps | 98.2% |
| IMR 4350 | <<locked>> | 84% | 39,407 psi | 62% | 2530 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,306 psi | 63% | 2526 fps | 96.3% |
| IMR 4831 | <<locked>> | 80% | 33,388 psi | 52% | 2434 fps | 97.2% |
| IMR 4895 | <<locked>> | 80% | 47,993 psi | 75% | 2703 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 49,777 psi | 78% | 2720 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 53,301 psi | 84% | 2726 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 51,314 psi | 80% | 2707 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,647 psi | 79% | 2661 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,108 psi | 72% | 2621 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,971 psi | 60% | 2480 fps | 97.1% |
| Lovex S070 | <<locked>> | 80% | 36,143 psi | 57% | 2457 fps | 95.4% |
| Lovex S071 | <<locked>> | 94% | 33,968 psi | 53% | 2454 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 50,285 psi | 79% | 2680 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,807 psi | 80% | 2677 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,151 psi | 72% | 2664 fps | 100% |
| Norma 204 | <<locked>> | 88% | 44,425 psi | 70% | 2667 fps | 95.7% |
| Norma MRP | <<locked>> | 90% | 37,289 psi | 58% | 2615 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 34,505 psi | 54% | 2474 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 80% | 46,180 psi | 72% | 2684 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 80% | 33,460 psi | 52% | 2457 fps | 95.1% |
| Ramshot Magnum | <<locked>> | 98% | 40,103 psi | 63% | 2628 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 53,374 psi | 84% | 2753 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 53,316 psi | 84% | 2766 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,528 psi | 43% | 1572 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,628 psi | 70% | 2615 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,241 psi | 79% | 2789 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,727 psi | 64% | 2664 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,127 psi | 53% | 2493 fps | 97.1% |
| ReloadSwiss RS 70 | 61.9 gr | 80% | 33,504 psi | 53% | 2493 fps | 96.2% |
| Rottweil R 901 | <<locked>> | 80% | 54,259 psi | 85% | 2700 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,935 psi | 75% | 2635 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,350 psi | 65% | 2569 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 94% | 48,588 psi | 76% | 2710 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 92% | 42,322 psi | 66% | 2651 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 39,059 psi | 61% | 2497 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,971 psi | 60% | 2480 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,314 psi | 80% | 2707 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,108 psi | 72% | 2621 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,143 psi | 57% | 2457 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,322 psi | 66% | 2621 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,156 psi | 82% | 2733 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,690 psi | 78% | 2703 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,227 psi | 80% | 2615 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,120 psi | 68% | 2490 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,202 psi | 58% | 2425 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 41,901 psi | 66% | 2644 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 50,908 psi | 80% | 2615 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,909 psi | 81% | 2723 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,901 psi | 66% | 2572 fps | 99.9% |
| Somchem S361 | <<locked>> | 94% | 49,908 psi | 78% | 2700 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 30,995 psi | 49% | 2431 fps | 99.2% |
| Somchem S385 | <<locked>> | 88% | 37,768 psi | 59% | 2530 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 51,706 psi | 81% | 2598 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,921 psi | 75% | 2598 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,109 psi | 75% | 2612 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,914 psi | 63% | 2503 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 35,839 psi | 56% | 2474 fps | 97.7% |
| Vihtavuori N165 | <<locked>> | 94% | 39,494 psi | 62% | 2552 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 53,766 psi | 84% | 2726 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 46,441 psi | 73% | 2608 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,375 psi | 55% | 2477 fps | 97.4% |
| Vihtavuori N555 | <<locked>> | 80% | 26,919 psi | 42% | 2323 fps | 95.1% |
| Vihtavuori N560 | <<locked>> | 98% | 49,385 psi | 77% | 2838 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,273 psi | 55% | 2448 fps | 99.3% |
| Winchester 760 | <<locked>> | 80% | 36,608 psi | 57% | 2523 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 84% | 24,816 psi | 39% | 2320 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,603 psi | 78% | 2710 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 42,540 psi | 67% | 2618 fps | 95.2% |
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 108 powders for 8 x 68 S loaded with the .323 | 200gr | Sako Hammerhead. Alliant Reloder-26 delivers the highest muzzle velocity at 2,959 fps; across all powders the maximum-charge window runs from 1,716 fps to 2,959 fps. Accurate 3100 gives the best case fill at 100 %, and 108 of the 108 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.323" calls for a 1:6.0 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-16 rank at the top here: for 8 x 68 S with the .323 | 200gr | Sako Hammerhead 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.