Load Specifications
Bullet:.323 | 196gr | Geco PLUS
Bullet Manufacturer:Geco
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:1:16.5
Load data in caliber 8 x 68 S with .323 | 196gr | Geco PLUS bullet and 105 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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% | 57,130 psi | 90% | 2710 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 56,521 psi | 89% | 2743 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 54,781 psi | 86% | 2756 fps | 98.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,195 psi | 74% | 2730 fps | 98.6% |
| Accurate 4064 | <<locked>> | 88% | 56,652 psi | 89% | 2792 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 57,116 psi | 90% | 2897 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 56,173 psi | 88% | 2825 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 57,290 psi | 90% | 2828 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 54,578 psi | 86% | 2877 fps | 97.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,027 psi | 86% | 2772 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 56,565 psi | 89% | 2740 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 56,246 psi | 88% | 2949 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 57,624 psi | 90% | 2848 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 54,549 psi | 85% | 2822 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 54,215 psi | 85% | 2900 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 55,361 psi | 87% | 2927 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 53,621 psi | 84% | 2867 fps | 97.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 47,268 psi | 74% | 2805 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,396 psi | 70% | 2753 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,059 psi | 61% | 2664 fps | 97.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,372 psi | 79% | 2933 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,188 psi | 88% | 2844 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 54,882 psi | 86% | 2815 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 47,268 psi | 74% | 2805 fps | 96.4% |
| Bofors RP7 | <<locked>> | 92% | 54,737 psi | 86% | 2795 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,391 psi | 88% | 2749 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 54,679 psi | 86% | 2802 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 55,593 psi | 87% | 2831 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 94% | 55,811 psi | 87% | 2897 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 92% | 55,927 psi | 88% | 2851 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 84% | 56,753 psi | 89% | 2831 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 54,230 psi | 85% | 2822 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,826 psi | 89% | 2871 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 56,086 psi | 88% | 2933 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,100 psi | 57% | 1722 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 54,360 psi | 85% | 2782 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 57,276 psi | 90% | 2808 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,710 psi | 89% | 2808 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,217 psi | 88% | 2792 fps | 99% |
| IMR 4350 | <<locked>> | 96% | 55,288 psi | 87% | 2825 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,376 psi | 88% | 2825 fps | 99% |
| IMR 4831 | <<locked>> | 98% | 57,246 psi | 90% | 2884 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 55,985 psi | 88% | 2848 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 54,302 psi | 85% | 2808 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 82% | 55,027 psi | 86% | 2772 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,333 psi | 88% | 2795 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,332 psi | 87% | 2749 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 56,942 psi | 89% | 2805 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,246 psi | 88% | 2818 fps | 99.7% |
| Lovex S070 | <<locked>> | 96% | 57,261 psi | 90% | 2858 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,146 psi | 61% | 2582 fps | 96.9% |
| Norma 201 | <<locked>> | 84% | 54,940 psi | 86% | 2766 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,477 psi | 87% | 2766 fps | 100% |
| Norma 203B | <<locked>> | 88% | 57,508 psi | 90% | 2861 fps | 100% |
| Norma 204 | <<locked>> | 96% | 56,014 psi | 88% | 2877 fps | 97.7% |
| Norma MRPᴾ | <<locked>> | 100% | 49,908 psi | 78% | 2887 fps | 98.4% |
| Norma URP | <<locked>> | 96% | 55,637 psi | 87% | 2881 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 54,418 psi | 85% | 2835 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 54,491 psi | 85% | 2881 fps | 99.5% |
| Ramshot TAC | <<locked>> | 82% | 55,187 psi | 86% | 2799 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,042 psi | 86% | 2812 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,564 psi | 57% | 1762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 55,782 psi | 87% | 2818 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 55,492 psi | 87% | 2890 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 55,013 psi | 86% | 2920 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 56,608 psi | 89% | 2917 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 55,593 psi | 87% | 2946 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 55,941 psi | 88% | 2746 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,463 psi | 87% | 2766 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,013 psi | 86% | 2812 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 56,463 psi | 88% | 2848 fps | 96.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,750 psi | 83% | 2851 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 92% | 54,737 psi | 86% | 2795 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,246 psi | 88% | 2818 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,333 psi | 88% | 2795 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,942 psi | 89% | 2805 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 57,261 psi | 90% | 2858 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 56,681 psi | 89% | 2874 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 57,653 psi | 90% | 2831 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,708 psi | 86% | 2799 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,173 psi | 88% | 2700 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,623 psi | 89% | 2700 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,304 psi | 88% | 2776 fps | 99% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,257 psi | 82% | 2848 fps | 97.5% |
| Somchem S335 | <<locked>> | 84% | 55,608 psi | 87% | 2697 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 57,261 psi | 90% | 2818 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 55,085 psi | 86% | 2805 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 54,259 psi | 85% | 2881 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,447 psi | 84% | 2828 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 84% | 56,565 psi | 89% | 2684 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,608 psi | 87% | 2726 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,217 psi | 88% | 2746 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 56,492 psi | 89% | 2782 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 54,404 psi | 85% | 2822 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,992 psi | 72% | 2694 fps | 96.5% |
| Vihtavuori N530 | <<locked>> | 82% | 55,405 psi | 87% | 2769 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 57,740 psi | 90% | 2789 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 57,000 psi | 89% | 2881 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,588 psi | 78% | 2828 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,186 psi | 85% | 2795 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,796 psi | 87% | 2818 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,811 psi | 87% | 2897 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,972 psi | 63% | 2792 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 54,708 psi | 86% | 2805 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 49,937 psi | 78% | 2766 fps | 96.7% |
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% | 53,650 psi | 84% | 2667 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,485 psi | 73% | 2605 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,933 psi | 70% | 2592 fps | 96.4% |
| Accurate 3100 | <<locked>> | 90% | 33,605 psi | 53% | 2461 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 43,990 psi | 69% | 2605 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,938 psi | 52% | 2457 fps | 96.6% |
| ADI AR 2206H | <<locked>> | 80% | 49,676 psi | 78% | 2726 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,163 psi | 66% | 2579 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 45,063 psi | 71% | 2710 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,721 psi | 81% | 2723 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,939 psi | 83% | 2694 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,716 psi | 72% | 2779 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,163 psi | 66% | 2602 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,237 psi | 71% | 2667 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,808 psi | 51% | 2470 fps | 96.7% |
| Alliant Reloder-17 | 59.7 gr | 80% | 36,782 psi | 58% | 2595 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 94% | 44,280 psi | 69% | 2703 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 98% | 44,135 psi | 69% | 2746 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 84% | 26,992 psi | 42% | 2333 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 96% | 34,563 psi | 54% | 2552 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 88% | 33,011 psi | 52% | 2562 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,066 psi | 77% | 2736 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 42,221 psi | 66% | 2612 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 44,135 psi | 69% | 2746 fps | 95.6% |
| Bofors RP7 | <<locked>> | 82% | 40,059 psi | 63% | 2533 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,098 psi | 83% | 2703 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,184 psi | 80% | 2749 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,786 psi | 67% | 2618 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 82% | 37,405 psi | 59% | 2559 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 84% | 43,453 psi | 68% | 2638 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 50,169 psi | 79% | 2733 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,240 psi | 47% | 2369 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,398 psi | 73% | 2713 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 39,262 psi | 62% | 2625 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,934 psi | 42% | 1539 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,979 psi | 75% | 2684 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 50,502 psi | 79% | 2717 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,324 psi | 69% | 2612 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,586 psi | 73% | 2635 fps | 97.6% |
| IMR 4350 | <<locked>> | 86% | 40,408 psi | 63% | 2562 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,088 psi | 61% | 2513 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 31,865 psi | 50% | 2415 fps | 96.3% |
| IMR 4895 | <<locked>> | 80% | 46,383 psi | 73% | 2697 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 98% | 51,010 psi | 80% | 2756 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 51,721 psi | 81% | 2723 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,400 psi | 77% | 2700 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,965 psi | 77% | 2651 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 44,382 psi | 70% | 2612 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,521 psi | 57% | 2464 fps | 96.3% |
| Lovex S070 | <<locked>> | 82% | 37,115 psi | 58% | 2497 fps | 95.3% |
| Lovex S071 | <<locked>> | 96% | 34,389 psi | 54% | 2477 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 48,472 psi | 76% | 2671 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,936 psi | 77% | 2671 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,643 psi | 70% | 2657 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 45,759 psi | 72% | 2707 fps | 95.6% |
| Norma MRP | <<locked>> | 92% | 38,130 psi | 60% | 2651 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 33,127 psi | 52% | 2461 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 80% | 44,498 psi | 70% | 2674 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 34,330 psi | 54% | 2493 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 51,547 psi | 81% | 2743 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,576 psi | 81% | 2759 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,238 psi | 43% | 1572 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,062 psi | 67% | 2602 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,225 psi | 76% | 2776 fps | 99.9% |
| ReloadSwiss RS 60 | 59.7 gr | 80% | 39,131 psi | 61% | 2654 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,576 psi | 51% | 2470 fps | 96.1% |
| ReloadSwiss RS 70 | 60.6 gr | 80% | 32,256 psi | 51% | 2474 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 52,591 psi | 82% | 2697 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,166 psi | 72% | 2625 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,798 psi | 62% | 2559 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 96% | 49,705 psi | 78% | 2743 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 94% | 43,091 psi | 68% | 2684 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 82% | 40,059 psi | 63% | 2533 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,521 psi | 57% | 2464 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,400 psi | 77% | 2700 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,382 psi | 70% | 2612 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 37,115 psi | 58% | 2497 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,683 psi | 64% | 2608 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,198 psi | 79% | 2720 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,993 psi | 75% | 2694 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,661 psi | 78% | 2612 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,684 psi | 65% | 2484 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,159 psi | 60% | 2461 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 42,685 psi | 67% | 2677 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 49,226 psi | 77% | 2608 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,966 psi | 78% | 2713 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,248 psi | 63% | 2559 fps | 99.6% |
| Somchem S365 | <<locked>> | 80% | 29,718 psi | 47% | 2415 fps | 98.6% |
| Somchem S385 | <<locked>> | 92% | 41,060 psi | 64% | 2615 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 50,111 psi | 79% | 2598 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,195 psi | 72% | 2595 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,601 psi | 73% | 2608 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,493 psi | 60% | 2497 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 34,461 psi | 54% | 2457 fps | 96.9% |
| Vihtavuori N165 | <<locked>> | 98% | 43,105 psi | 68% | 2641 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 51,996 psi | 81% | 2720 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,817 psi | 70% | 2602 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,924 psi | 53% | 2461 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 84% | 29,312 psi | 46% | 2408 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,881 psi | 53% | 2434 fps | 98.7% |
| Winchester 748 | <<locked>> | 80% | 52,127 psi | 82% | 2766 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 37,579 psi | 59% | 2562 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 86% | 25,353 psi | 40% | 2349 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,892 psi | 75% | 2700 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 43,526 psi | 68% | 2651 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 105 powders for 8 x 68 S loaded with the .323 | 196gr | Geco PLUS. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,949 fps; across all powders the maximum-charge window runs from 1,722 fps to 2,949 fps. Accurate 3100 gives the best case fill at 100 %, and 105 of the 105 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 196.0 gr projectile in 0.323" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for 8 x 68 S with the .323 | 196gr | Geco PLUS 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.