Load Specifications
Bullet Manufacturer:Peregrine
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:1:14.0
Load data in caliber 8 x 68 S with .323 | 200gr | Peregrine Bushmaster (VRG-3) 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-17.
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% | 55,187 psi | 86% | 2657 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,711 psi | 90% | 2726 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,695 psi | 87% | 2749 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,594 psi | 89% | 2753 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,875 psi | 70% | 2664 fps | 98.3% |
| Accurate 4064 | <<locked>> | 90% | 57,711 psi | 90% | 2779 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,476 psi | 85% | 2831 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 54,375 psi | 85% | 2766 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,535 psi | 87% | 2769 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,750 psi | 83% | 2818 fps | 97.3% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,811 psi | 89% | 2766 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,621 psi | 86% | 2684 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,476 psi | 85% | 2894 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,709 psi | 87% | 2789 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,318 psi | 88% | 2815 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,680 psi | 87% | 2890 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 57,188 psi | 90% | 2920 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,735 psi | 81% | 2805 fps | 97.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 45,208 psi | 71% | 2740 fps | 95.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,612 psi | 67% | 2694 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,333 psi | 59% | 2598 fps | 96.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,964 psi | 75% | 2864 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,244 psi | 85% | 2785 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 56,347 psi | 88% | 2805 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 45,208 psi | 71% | 2740 fps | 95.9% |
| Bofors RP7 | <<locked>> | 94% | 56,202 psi | 88% | 2785 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,955 psi | 86% | 2697 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 56,449 psi | 88% | 2795 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 57,290 psi | 90% | 2825 fps | 100% |
| Hodgdon H414 | <<locked>> | 96% | 57,319 psi | 90% | 2887 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 94% | 57,682 psi | 90% | 2848 fps | 98.5% |
| Hodgdon H4895 | <<locked>> | 84% | 54,998 psi | 86% | 2776 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,680 psi | 87% | 2808 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,723 psi | 86% | 2812 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,070 psi | 85% | 2871 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,810 psi | 56% | 1690 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,260 psi | 88% | 2779 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,448 psi | 87% | 2753 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,071 psi | 86% | 2756 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,781 psi | 86% | 2740 fps | 98.9% |
| IMR 4350 | <<locked>> | 98% | 56,855 psi | 89% | 2815 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,839 psi | 86% | 2769 fps | 98.9% |
| IMR 4831 | <<locked>> | 98% | 54,984 psi | 86% | 2822 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 54,201 psi | 85% | 2792 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,811 psi | 89% | 2766 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,331 psi | 85% | 2740 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,217 psi | 90% | 2743 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,810 psi | 86% | 2746 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,186 psi | 85% | 2759 fps | 99.6% |
| Lovex S070 | <<locked>> | 96% | 55,274 psi | 87% | 2799 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,970 psi | 58% | 2516 fps | 96.3% |
| Norma 201 | <<locked>> | 86% | 56,463 psi | 88% | 2759 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,159 psi | 90% | 2756 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,564 psi | 87% | 2802 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,085 psi | 85% | 2818 fps | 97.4% |
| Norma MRPᴾ | <<locked>> | 100% | 47,848 psi | 75% | 2825 fps | 98% |
| Norma URP | <<locked>> | 98% | 57,087 psi | 89% | 2871 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 56,188 psi | 88% | 2828 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 56,028 psi | 88% | 2874 fps | 99.6% |
| Ramshot TAC | <<locked>> | 84% | 57,159 psi | 90% | 2795 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,985 psi | 89% | 2808 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 57,696 psi | 90% | 2769 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,230 psi | 57% | 1729 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 57,638 psi | 90% | 2812 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 57,072 psi | 89% | 2881 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,681 psi | 89% | 2913 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,462 psi | 85% | 2858 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 57,464 psi | 90% | 2943 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 57,130 psi | 90% | 2730 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,029 psi | 89% | 2756 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 56,478 psi | 89% | 2802 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 54,563 psi | 86% | 2789 fps | 96.5% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,386 psi | 79% | 2785 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 94% | 56,202 psi | 88% | 2785 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,186 psi | 85% | 2759 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,331 psi | 85% | 2740 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,810 psi | 86% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,274 psi | 87% | 2799 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,679 psi | 86% | 2815 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,477 psi | 87% | 2769 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,347 psi | 88% | 2789 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,563 psi | 86% | 2648 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,013 psi | 86% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,375 psi | 85% | 2717 fps | 98.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,937 psi | 78% | 2779 fps | 97.1% |
| Somchem S335 | <<locked>> | 86% | 57,217 psi | 90% | 2690 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,274 psi | 87% | 2759 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 56,637 psi | 89% | 2799 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 56,579 psi | 89% | 2785 fps | 96% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,666 psi | 87% | 2867 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,126 psi | 80% | 2766 fps | 98% |
| Vihtavuori N130 | <<locked>> | 82% | 57,638 psi | 90% | 2648 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 54,969 psi | 86% | 2631 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,217 psi | 90% | 2717 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,462 psi | 85% | 2690 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,636 psi | 86% | 2726 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,043 psi | 88% | 2815 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,092 psi | 69% | 2631 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 84% | 57,246 psi | 90% | 2762 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,927 psi | 88% | 2733 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,882 psi | 86% | 2822 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,210 psi | 74% | 2762 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,956 psi | 88% | 2789 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 57,682 psi | 90% | 2812 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 57,595 psi | 90% | 2890 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,014 psi | 60% | 2720 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 56,391 psi | 88% | 2799 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 47,935 psi | 75% | 2700 fps | 96.3% |
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% | 51,895 psi | 81% | 2612 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,280 psi | 69% | 2546 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,141 psi | 82% | 2700 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,511 psi | 68% | 2539 fps | 96.1% |
| Accurate 3100 | <<locked>> | 92% | 33,750 psi | 53% | 2444 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 41,916 psi | 66% | 2546 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,053 psi | 49% | 2392 fps | 96% |
| ADI AR 2206H | <<locked>> | 80% | 48,008 psi | 75% | 2667 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 40,654 psi | 64% | 2523 fps | 99% |
| ADI AR 2209 | <<locked>> | 94% | 43,381 psi | 68% | 2651 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,183 psi | 79% | 2671 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,198 psi | 80% | 2641 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,092 psi | 69% | 2720 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,654 psi | 64% | 2546 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,584 psi | 68% | 2612 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,372 psi | 49% | 2408 fps | 96.2% |
| Alliant Reloder-17 | 58 gr | 80% | 35,172 psi | 55% | 2533 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 94% | 42,569 psi | 67% | 2641 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 98% | 42,279 psi | 66% | 2680 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,209 psi | 43% | 2320 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 98% | 35,012 psi | 55% | 2539 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 88% | 31,082 psi | 49% | 2487 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,500 psi | 74% | 2680 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 40,364 psi | 63% | 2552 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 42,279 psi | 66% | 2680 fps | 95% |
| Bofors RP7 | <<locked>> | 84% | 40,944 psi | 64% | 2526 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,590 psi | 81% | 2648 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,371 psi | 77% | 2697 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,118 psi | 64% | 2559 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 38,261 psi | 60% | 2552 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 84% | 41,713 psi | 65% | 2575 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 48,530 psi | 76% | 2677 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,848 psi | 45% | 2310 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,628 psi | 70% | 2654 fps | 100% |
| Hodgdon Superformance | 65.9 gr | 86% | 40,480 psi | 63% | 2625 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,571 psi | 42% | 1509 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,499 psi | 73% | 2631 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 48,573 psi | 76% | 2661 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,714 psi | 67% | 2556 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,223 psi | 71% | 2579 fps | 97.3% |
| IMR 4350 | <<locked>> | 86% | 38,957 psi | 61% | 2507 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,666 psi | 59% | 2457 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 30,197 psi | 47% | 2352 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 44,672 psi | 70% | 2638 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 50,183 psi | 79% | 2671 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,297 psi | 74% | 2641 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,718 psi | 75% | 2602 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 42,786 psi | 67% | 2556 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,056 psi | 55% | 2408 fps | 95.9% |
| Lovex S070 | <<locked>> | 84% | 37,768 psi | 59% | 2487 fps | 95.6% |
| Lovex S071 | <<locked>> | 98% | 34,635 psi | 54% | 2464 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 46,862 psi | 73% | 2615 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,398 psi | 74% | 2618 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,931 psi | 67% | 2598 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 43,990 psi | 69% | 2648 fps | 95.1% |
| Norma MRP | <<locked>> | 94% | 38,711 psi | 61% | 2638 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 31,517 psi | 49% | 2398 fps | 96% |
| Ramshot Big Game | <<locked>> | 80% | 42,815 psi | 67% | 2618 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 35,027 psi | 55% | 2487 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 50,038 psi | 78% | 2687 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,690 psi | 78% | 2700 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,969 psi | 85% | 2720 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,021 psi | 42% | 1545 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,437 psi | 65% | 2543 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,528 psi | 73% | 2720 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,478 psi | 59% | 2592 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,806 psi | 48% | 2405 fps | 95.5% |
| ReloadSwiss RS 70 | 60.3 gr | 82% | 32,938 psi | 52% | 2467 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 50,676 psi | 79% | 2641 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,527 psi | 70% | 2569 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,942 psi | 59% | 2500 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 96% | 47,993 psi | 75% | 2684 fps | 95% |
| Rottweil R 905 | <<locked>> | 96% | 44,121 psi | 69% | 2677 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 84% | 40,944 psi | 64% | 2526 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,056 psi | 55% | 2408 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,297 psi | 74% | 2641 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,786 psi | 67% | 2556 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 37,768 psi | 59% | 2487 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,131 psi | 61% | 2552 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,457 psi | 76% | 2664 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,499 psi | 73% | 2641 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,196 psi | 76% | 2559 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,292 psi | 63% | 2434 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 36,608 psi | 57% | 2405 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 43,700 psi | 68% | 2671 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 47,747 psi | 75% | 2559 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,312 psi | 76% | 2657 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 38,667 psi | 61% | 2503 fps | 99.4% |
| Somchem S361 | <<locked>> | 98% | 52,794 psi | 83% | 2730 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 28,137 psi | 44% | 2349 fps | 98.1% |
| Somchem S385 | <<locked>> | 92% | 39,102 psi | 61% | 2549 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 54,259 psi | 85% | 2608 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,675 psi | 76% | 2546 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,440 psi | 70% | 2543 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,947 psi | 70% | 2556 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,840 psi | 58% | 2438 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 32,909 psi | 52% | 2402 fps | 96.5% |
| Vihtavuori N165 | <<locked>> | 98% | 41,249 psi | 65% | 2579 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 50,386 psi | 79% | 2667 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,265 psi | 68% | 2549 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,343 psi | 51% | 2398 fps | 96% |
| Vihtavuori N555 | <<locked>> | 84% | 27,485 psi | 43% | 2339 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,489 psi | 51% | 2375 fps | 98.4% |
| Winchester 748 | <<locked>> | 80% | 50,328 psi | 79% | 2710 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 38,435 psi | 60% | 2556 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,556 psi | 40% | 2339 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,180 psi | 72% | 2644 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 44,686 psi | 70% | 2644 fps | 95.4% |
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 | Peregrine Bushmaster (VRG-3). ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,943 fps; across all powders the maximum-charge window runs from 1,690 fps to 2,943 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 56–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.323" calls for a 1:14.0 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 8 x 68 S with the .323 | 200gr | Peregrine Bushmaster (VRG-3) 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.