Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:186 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:1:11.5
Load data in caliber 8 x 75 S with .323 | 186gr | Peregrine VLR-5 bullet and 106 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR and ReloadSwiss RS 52.
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>> | 86% | 54,259 psi | 85% | 2700 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 56,144 psi | 88% | 2776 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 55,317 psi | 87% | 2762 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,259 psi | 85% | 2785 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,956 psi | 88% | 2769 fps | 96.9% |
| Accurate 4064 | <<locked>> | 94% | 55,158 psi | 86% | 2805 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,459 psi | 81% | 2835 fps | 99.2% |
| Accurate LT-30 | <<locked>> | 82% | 56,782 psi | 89% | 2687 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 57,261 psi | 90% | 2717 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 56,811 psi | 89% | 2848 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 54,476 psi | 85% | 2799 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 88% | 56,115 psi | 88% | 2802 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 56,594 psi | 89% | 2776 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 57,711 psi | 90% | 2907 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 56,565 psi | 89% | 2969 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 57,522 psi | 90% | 2864 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 57,406 psi | 90% | 2749 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 54,795 psi | 86% | 2838 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,053 psi | 78% | 2838 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 98% | 54,665 psi | 86% | 2936 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,288 psi | 55% | 2569 fps | 97.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,175 psi | 61% | 2713 fps | 96.3% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,101 psi | 88% | 2687 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 56,855 psi | 89% | 2867 fps | 99.7% |
| Bofors RP3 | <<locked>> | 94% | 54,201 psi | 85% | 2828 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 54,969 psi | 86% | 2799 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,578 psi | 86% | 2736 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 54,955 psi | 86% | 2828 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 57,479 psi | 90% | 2933 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 84% | 56,797 psi | 89% | 2795 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,128 psi | 85% | 2772 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 55,753 psi | 87% | 2844 fps | 99.3% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 54,853 psi | 86% | 2887 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 98% | 56,072 psi | 88% | 2854 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 90% | 57,377 psi | 90% | 2858 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,151 psi | 72% | 2720 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 56,550 psi | 89% | 2890 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 56,347 psi | 88% | 2930 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,012 psi | 55% | 1693 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,259 psi | 87% | 2812 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 57,101 psi | 89% | 2838 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 57,406 psi | 90% | 2828 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 92% | 57,740 psi | 90% | 2812 fps | 97.9% |
| IMR 4198 | <<locked>> | 84% | 57,551 psi | 90% | 2703 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 51,547 psi | 81% | 2769 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 98% | 57,116 psi | 90% | 2831 fps | 97.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,892 psi | 77% | 2776 fps | 99% |
| IMR 4895 | <<locked>> | 92% | 56,188 psi | 88% | 2871 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 56,115 psi | 88% | 2802 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 56,086 psi | 88% | 2785 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 56,231 psi | 88% | 2822 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 56,753 psi | 89% | 2776 fps | 100% |
| Lovex S062 | <<locked>> | 94% | 56,782 psi | 89% | 2822 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 55,883 psi | 88% | 2822 fps | 98.8% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,229 psi | 83% | 2802 fps | 97.5% |
| Norma 201 | <<locked>> | 90% | 55,405 psi | 87% | 2792 fps | 100% |
| Norma 202 | <<locked>> | 90% | 56,028 psi | 88% | 2795 fps | 100% |
| Norma 203B | <<locked>> | 94% | 57,363 psi | 90% | 2874 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 50,952 psi | 80% | 2825 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 92% | 54,389 psi | 85% | 2851 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,908 psi | 78% | 2818 fps | 97.6% |
| Ramshot TAC | <<locked>> | 88% | 56,623 psi | 89% | 2825 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,825 psi | 87% | 2838 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 86% | 57,101 psi | 89% | 2802 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,346 psi | 55% | 1732 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,622 psi | 87% | 2782 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 56,318 psi | 88% | 2828 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 54,911 psi | 86% | 2904 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 54,534 psi | 85% | 2936 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,213 psi | 80% | 2858 fps | 99.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,503 psi | 81% | 2881 fps | 98.8% |
| Rottweil R 901 | <<locked>> | 88% | 56,159 psi | 88% | 2769 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 55,782 psi | 87% | 2789 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 57,624 psi | 90% | 2867 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 54,969 psi | 86% | 2799 fps | 97% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 55,883 psi | 88% | 2822 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 90% | 56,231 psi | 88% | 2822 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 56,782 psi | 89% | 2822 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,229 psi | 83% | 2802 fps | 97.5% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,114 psi | 86% | 2753 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 56,173 psi | 88% | 2884 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 54,984 psi | 86% | 2726 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 54,679 psi | 86% | 2795 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,172 psi | 86% | 2818 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 57,276 psi | 90% | 2730 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 57,392 psi | 90% | 2730 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 56,695 psi | 89% | 2776 fps | 97.7% |
| Somchem S321 | <<locked>> | 86% | 57,392 psi | 90% | 2838 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 56,463 psi | 88% | 2730 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,085 psi | 85% | 2789 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 54,694 psi | 86% | 2818 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,237 psi | 71% | 2772 fps | 100% |
| Vihtavuori N130 | <<locked>> | 86% | 57,174 psi | 90% | 2697 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 57,377 psi | 90% | 2713 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,216 psi | 87% | 2753 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 56,449 psi | 88% | 2772 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,130 psi | 88% | 2795 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,708 psi | 84% | 2825 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 88% | 56,753 psi | 89% | 2802 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 54,621 psi | 86% | 2769 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,460 psi | 82% | 2828 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,811 psi | 59% | 2641 fps | 97.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,404 psi | 85% | 2808 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 56,202 psi | 88% | 2848 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 55,143 psi | 86% | 2894 fps | 97.8% |
| Winchester StaBALL Match | <<locked>> | 90% | 55,158 psi | 86% | 2831 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% | 44,918 psi | 70% | 2566 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,834 psi | 77% | 2671 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,057 psi | 58% | 2480 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,179 psi | 69% | 2635 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 48,776 psi | 76% | 2657 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 35,056 psi | 55% | 2470 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 33,576 psi | 53% | 2497 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 53,417 psi | 84% | 2644 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 53,824 psi | 84% | 2671 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 41,176 psi | 65% | 2585 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 80% | 35,172 psi | 55% | 2441 fps | 96.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,308 psi | 68% | 2598 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 80% | 43,105 psi | 68% | 2592 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,546 psi | 79% | 2799 fps | 99.9% |
| Alliant Power Pro 2000-MR | 53.3 gr | 80% | 37,304 psi | 58% | 2605 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,316 psi | 54% | 2457 fps | 97.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,647 psi | 79% | 2657 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,956 psi | 58% | 2520 fps | 97% |
| Alliant Reloder-16 | <<locked>> | 88% | 34,432 psi | 54% | 2513 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 29,617 psi | 46% | 2415 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,227 psi | 49% | 2464 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 98% | 36,361 psi | 57% | 2644 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,736 psi | 83% | 2644 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,509 psi | 63% | 2592 fps | 97.4% |
| Bofors RP3 | <<locked>> | 80% | 33,692 psi | 53% | 2457 fps | 97.6% |
| Bofors RP7 | <<locked>> | 94% | 48,298 psi | 76% | 2690 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,339 psi | 71% | 2592 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,771 psi | 65% | 2618 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,296 psi | 73% | 2759 fps | 99% |
| Hodgdon H322 | <<locked>> | 80% | 49,763 psi | 78% | 2697 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,647 psi | 79% | 2723 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 37,159 psi | 58% | 2513 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 94% | 44,730 psi | 70% | 2720 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 94% | 49,095 psi | 77% | 2743 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 41,539 psi | 65% | 2598 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,370 psi | 46% | 2356 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,579 psi | 59% | 2569 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 96% | 48,588 psi | 76% | 2805 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,020 psi | 41% | 1512 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,132 psi | 63% | 2556 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 41,104 psi | 64% | 2602 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,883 psi | 58% | 2474 fps | 97% |
| IMR 4166 Enduron | <<locked>> | 84% | 44,904 psi | 70% | 2602 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 51,242 psi | 80% | 2621 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 48,486 psi | 76% | 2717 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 90% | 44,469 psi | 70% | 2621 fps | 95.1% |
| IMR 4831 | <<locked>> | 90% | 34,824 psi | 55% | 2510 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 37,855 psi | 59% | 2549 fps | 97.9% |
| IMR 8208 XBR | <<locked>> | 80% | 43,308 psi | 68% | 2598 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 48,791 psi | 76% | 2684 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 39,972 psi | 63% | 2569 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 41,756 psi | 65% | 2533 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 36,550 psi | 57% | 2477 fps | 98.6% |
| Lovex S065 | <<locked>> | 88% | 38,537 psi | 60% | 2520 fps | 95.1% |
| Lovex S070 | <<locked>> | 94% | 44,063 psi | 69% | 2648 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 40,408 psi | 63% | 2543 fps | 99.2% |
| Norma 202 | <<locked>> | 80% | 40,538 psi | 64% | 2552 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,361 psi | 57% | 2507 fps | 97.4% |
| Norma URP | <<locked>> | 88% | 34,330 psi | 54% | 2507 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 35,897 psi | 56% | 2520 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 94% | 40,930 psi | 64% | 2651 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 43,395 psi | 68% | 2602 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,670 psi | 67% | 2621 fps | 98.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,905 psi | 74% | 2648 fps | 99.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,194 psi | 41% | 1545 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,718 psi | 76% | 2684 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 43,294 psi | 68% | 2612 fps | 95.7% |
| ReloadSwiss RS 52 | 51.7 gr | 80% | 38,638 psi | 61% | 2618 fps | 97.5% |
| ReloadSwiss RS 60 | 52.5 gr | 80% | 31,575 psi | 49% | 2484 fps | 98.5% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 35,969 psi | 56% | 2572 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,146 psi | 61% | 2641 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 43,932 psi | 69% | 2582 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,435 psi | 60% | 2497 fps | 98.9% |
| Rottweil R 903 | <<locked>> | 80% | 31,618 psi | 50% | 2402 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 94% | 48,298 psi | 76% | 2690 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 38,537 psi | 60% | 2520 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,972 psi | 63% | 2569 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 36,550 psi | 57% | 2477 fps | 98.6% |
| Shooters World SW4350 | <<locked>> | 94% | 44,063 psi | 69% | 2648 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,561 psi | 81% | 2700 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,909 psi | 52% | 2454 fps | 96.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,619 psi | 81% | 2680 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,321 psi | 65% | 2572 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,900 psi | 63% | 2559 fps | 98.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,930 psi | 66% | 2503 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,606 psi | 54% | 2372 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 43,294 psi | 68% | 2566 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 46,876 psi | 73% | 2680 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 41,539 psi | 65% | 2507 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,220 psi | 65% | 2575 fps | 98.4% |
| Somchem S355 | <<locked>> | 80% | 32,764 psi | 51% | 2415 fps | 96.8% |
| Somchem S365 | <<locked>> | 84% | 26,774 psi | 42% | 2343 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 47,514 psi | 74% | 2566 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,235 psi | 66% | 2500 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,579 psi | 59% | 2484 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,435 psi | 60% | 2490 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,053 psi | 49% | 2352 fps | 97.6% |
| Vihtavuori N160 | <<locked>> | 88% | 36,042 psi | 56% | 2510 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 43,381 psi | 68% | 2595 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 36,854 psi | 58% | 2477 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 35,114 psi | 55% | 2507 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 96% | 33,228 psi | 52% | 2536 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 29,646 psi | 46% | 2326 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 42,815 psi | 67% | 2638 fps | 99.9% |
| Winchester 760 | <<locked>> | 94% | 44,976 psi | 70% | 2723 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,204 psi | 61% | 2562 fps | 98.6% |
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 117 powders for 8 x 75 S loaded with the .323 | 186gr | Peregrine VLR-5. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,969 fps; across all powders the maximum-charge window runs from 1,693 fps to 2,969 fps. Accurate 3100 gives the best case fill at 100 %, and 117 of the 117 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 49–90 %, leaving at least 10 % headroom. The 186.0 gr projectile in 0.323" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 8 x 75 S with the .323 | 186gr | Peregrine VLR-5 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 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.