Load Specifications
Load data in caliber 8 x 75 S with .323 | 165gr | Peregrine Plainsmaster (VLR-4) bullet and 97 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 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.
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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 90% | 57,479 psi | 90% | 2920 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 57,566 psi | 90% | 3025 fps | 99.3% |
| Accurate 2460 | <<locked>> | 86% | 56,028 psi | 88% | 2946 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 54,447 psi | 85% | 2930 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 53,853 psi | 84% | 2953 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 54,418 psi | 85% | 2972 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,833 psi | 73% | 2920 fps | 97.6% |
| Accurate LT-30 | <<locked>> | 84% | 57,058 psi | 89% | 2864 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 57,522 psi | 90% | 2890 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 56,420 psi | 88% | 3015 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 98% | 57,479 psi | 90% | 3005 fps | 99.4% |
| ADI AR 2219 | <<locked>> | 82% | 54,273 psi | 85% | 2940 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 55,956 psi | 88% | 2972 fps | 100% |
| Alliant AR-Comp | <<locked>> | 90% | 55,811 psi | 87% | 2949 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 57,537 psi | 90% | 3084 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 56,159 psi | 88% | 3130 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 56,971 psi | 89% | 3031 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 86% | 57,232 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 54,128 psi | 85% | 2999 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,572 psi | 73% | 2933 fps | 97.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 54,143 psi | 85% | 3094 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 56,391 psi | 88% | 2861 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 56,521 psi | 89% | 3028 fps | 99.1% |
| Bofors RP3 | <<locked>> | 98% | 57,522 psi | 90% | 3048 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 88% | 54,505 psi | 85% | 2904 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 54,723 psi | 86% | 2999 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 56,985 psi | 89% | 3104 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 86% | 56,550 psi | 89% | 2969 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 54,114 psi | 85% | 2946 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 55,158 psi | 86% | 2999 fps | 98.5% |
| Hodgdon H4895 | <<locked>> | 92% | 56,985 psi | 89% | 3025 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,627 psi | 67% | 2808 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 56,043 psi | 88% | 3058 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,577 psi | 54% | 1801 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 54,969 psi | 86% | 2976 fps | 99.7% |
| IMR 3031 | <<locked>> | 92% | 56,579 psi | 89% | 3015 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 57,029 psi | 89% | 2992 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 92% | 54,273 psi | 85% | 2913 fps | 96.2% |
| IMR 4198 | <<locked>> | 86% | 57,551 psi | 90% | 2887 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 56,869 psi | 89% | 2989 fps | 96.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,570 psi | 70% | 2861 fps | 97.2% |
| IMR 4895 | <<locked>> | 94% | 55,535 psi | 87% | 3031 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 90% | 55,956 psi | 88% | 2972 fps | 100% |
| Lovex D073.5 | <<locked>> | 86% | 55,898 psi | 88% | 2956 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 55,637 psi | 87% | 2989 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 56,565 psi | 89% | 2943 fps | 99.7% |
| Lovex S062 | <<locked>> | 96% | 56,202 psi | 88% | 2986 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 52,069 psi | 82% | 2920 fps | 97.2% |
| Norma 200 | <<locked>> | 82% | 56,855 psi | 89% | 2897 fps | 100% |
| Norma 201 | <<locked>> | 92% | 55,114 psi | 86% | 2959 fps | 99.9% |
| Norma 202 | <<locked>> | 92% | 55,637 psi | 87% | 2966 fps | 100% |
| Norma 203B | <<locked>> | 96% | 56,855 psi | 89% | 3041 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 46,891 psi | 73% | 2917 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 96% | 57,725 psi | 90% | 3068 fps | 99.7% |
| Ramshot TAC | <<locked>> | 90% | 56,623 psi | 89% | 2986 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 90% | 55,666 psi | 87% | 3005 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 88% | 57,319 psi | 90% | 2972 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,795 psi | 55% | 1841 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 55,608 psi | 87% | 2956 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 56,057 psi | 88% | 2982 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 54,317 psi | 85% | 3068 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 54,157 psi | 85% | 3104 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,572 psi | 73% | 2940 fps | 97.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 47,732 psi | 75% | 2963 fps | 96.7% |
| Rottweil R 901 | <<locked>> | 90% | 55,912 psi | 88% | 2943 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 55,492 psi | 87% | 2956 fps | 100% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 57,072 psi | 89% | 3031 fps | 99.9% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 52,069 psi | 82% | 2920 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 92% | 55,637 psi | 87% | 2989 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 56,202 psi | 88% | 2986 fps | 100% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 55,376 psi | 87% | 2923 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 57,014 psi | 89% | 2602 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 54,592 psi | 86% | 2949 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 55,463 psi | 87% | 3045 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 54,897 psi | 86% | 2904 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 54,549 psi | 85% | 2956 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 55,114 psi | 86% | 2986 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 57,246 psi | 90% | 2904 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 57,203 psi | 90% | 2897 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 52,605 psi | 82% | 2871 fps | 95.8% |
| Somchem S321 | <<locked>> | 88% | 57,392 psi | 90% | 3009 fps | 100% |
| Somchem S335 | <<locked>> | 92% | 56,376 psi | 88% | 2900 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 53,911 psi | 84% | 2949 fps | 99.4% |
| Somchem S355ᴾ | <<locked>> | 100% | 57,595 psi | 90% | 3031 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,495 psi | 65% | 2861 fps | 99.2% |
| Vihtavuori N130 | <<locked>> | 88% | 57,058 psi | 89% | 2871 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 57,246 psi | 90% | 2887 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 54,520 psi | 85% | 2920 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 56,289 psi | 88% | 2943 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 55,854 psi | 88% | 2963 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 49,472 psi | 78% | 2920 fps | 97.9% |
| Vihtavuori N530 | <<locked>> | 90% | 56,536 psi | 89% | 2972 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 54,259 psi | 85% | 2936 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 48,472 psi | 76% | 2923 fps | 97.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 50,560 psi | 79% | 2907 fps | 99.5% |
| Winchester 748 | <<locked>> | 90% | 55,985 psi | 88% | 3022 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 54,592 psi | 86% | 2992 fps | 99.8% |
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% | 41,727 psi | 65% | 2677 fps | 100% |
| Accurate 2200 | <<locked>> | 80% | 53,795 psi | 84% | 2966 fps | 98.9% |
| Accurate 2460 | <<locked>> | 80% | 45,455 psi | 71% | 2782 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,779 psi | 53% | 2572 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,625 psi | 64% | 2730 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 31,995 psi | 50% | 2552 fps | 98.7% |
| Accurate 4350 | <<locked>> | 94% | 37,594 psi | 59% | 2740 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 50,647 psi | 79% | 2772 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 51,024 psi | 80% | 2795 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 38,537 psi | 60% | 2684 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 37,115 psi | 58% | 2631 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 50,705 psi | 79% | 2884 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,640 psi | 64% | 2703 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 80% | 39,682 psi | 62% | 2707 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 47,152 psi | 74% | 2910 fps | 99.1% |
| Alliant Power Pro 2000-MR | 56 gr | 82% | 37,231 psi | 58% | 2746 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,691 psi | 50% | 2539 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,543 psi | 75% | 2785 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 36,622 psi | 57% | 2661 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 94% | 38,711 psi | 61% | 2759 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 86% | 33,591 psi | 53% | 2661 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,705 psi | 78% | 2766 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,550 psi | 59% | 2677 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 30,850 psi | 48% | 2533 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,641 psi | 67% | 2703 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,682 psi | 61% | 2713 fps | 98.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,670 psi | 67% | 2851 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 80% | 46,383 psi | 73% | 2815 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 47,253 psi | 74% | 2838 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 39,421 psi | 62% | 2713 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 38,812 psi | 61% | 2697 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 32,909 psi | 52% | 2585 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,635 psi | 54% | 2648 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,614 psi | 40% | 1608 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,405 psi | 59% | 2648 fps | 96.9% |
| IMR 3031 | <<locked>> | 80% | 37,666 psi | 59% | 2700 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 36,608 psi | 57% | 2615 fps | 95.6% |
| IMR 4166 Enduron | <<locked>> | 90% | 50,908 psi | 80% | 2861 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 48,298 psi | 76% | 2753 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 50,285 psi | 79% | 2881 fps | 95.2% |
| IMR 4831 | <<locked>> | 96% | 39,073 psi | 61% | 2749 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 35,172 psi | 55% | 2638 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 80% | 40,640 psi | 64% | 2703 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 80% | 45,353 psi | 71% | 2789 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 36,709 psi | 58% | 2661 fps | 99% |
| Lovex S060 | <<locked>> | 80% | 39,291 psi | 62% | 2631 fps | 97% |
| Lovex S062 | <<locked>> | 80% | 33,939 psi | 53% | 2566 fps | 96.8% |
| Lovex S065 | <<locked>> | 94% | 43,076 psi | 68% | 2759 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 53,243 psi | 83% | 2844 fps | 100% |
| Norma 201 | <<locked>> | 80% | 37,449 psi | 59% | 2635 fps | 97.8% |
| Norma 202 | <<locked>> | 80% | 37,681 psi | 59% | 2654 fps | 99.5% |
| Norma 203B | <<locked>> | 80% | 33,779 psi | 53% | 2595 fps | 95.2% |
| Norma URP | <<locked>> | 94% | 38,450 psi | 60% | 2746 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 82% | 35,679 psi | 56% | 2661 fps | 95.6% |
| Ramshot TAC | <<locked>> | 82% | 43,221 psi | 68% | 2749 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,653 psi | 62% | 2717 fps | 97% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,976 psi | 69% | 2749 fps | 97.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,730 psi | 40% | 1647 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,716 psi | 72% | 2799 fps | 99.8% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 45,963 psi | 72% | 2812 fps | 95% |
| ReloadSwiss RS 52 | 52.9 gr | 80% | 35,389 psi | 55% | 2697 fps | 95% |
| ReloadSwiss RS 60 | 53.8 gr | 80% | 29,327 psi | 46% | 2546 fps | 95.9% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 40,437 psi | 63% | 2818 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 44,672 psi | 70% | 2900 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 41,147 psi | 64% | 2694 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 80% | 35,650 psi | 56% | 2585 fps | 97.3% |
| Rottweil R 903 | <<locked>> | 82% | 31,111 psi | 49% | 2533 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 94% | 43,076 psi | 68% | 2759 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,709 psi | 58% | 2661 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 33,939 psi | 53% | 2566 fps | 96.8% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 48,269 psi | 76% | 2812 fps | 99.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 54,244 psi | 85% | 2569 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 51,227 psi | 80% | 2897 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,824 psi | 55% | 2644 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 48,399 psi | 76% | 2808 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 41,176 psi | 65% | 2720 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,014 psi | 58% | 2648 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,392 psi | 62% | 2612 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,300 psi | 51% | 2467 fps | 99.2% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 49,066 psi | 77% | 2815 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 43,656 psi | 68% | 2782 fps | 99.2% |
| Somchem S335 | <<locked>> | 80% | 38,667 psi | 61% | 2608 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 38,232 psi | 60% | 2664 fps | 96.6% |
| Somchem S355 | <<locked>> | 82% | 32,242 psi | 51% | 2546 fps | 95.2% |
| Somchem S365 | <<locked>> | 90% | 29,849 psi | 47% | 2566 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 44,744 psi | 70% | 2690 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,595 psi | 62% | 2615 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,751 psi | 54% | 2585 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,679 psi | 56% | 2589 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 80% | 28,631 psi | 45% | 2428 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 94% | 40,393 psi | 63% | 2749 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 40,422 psi | 63% | 2694 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 80% | 34,316 psi | 54% | 2572 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 94% | 39,494 psi | 62% | 2749 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,794 psi | 53% | 2566 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 39,392 psi | 62% | 2733 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,129 psi | 57% | 2648 fps | 96.7% |
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 97 powders for 8 x 75 S loaded with the .323 | 165gr | Peregrine Plainsmaster (VLR-4). Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,130 fps; across all powders the maximum-charge window runs from 1,801 fps to 3,130 fps. Accurate 4350 gives the best case fill at 100 %, and 97 of the 97 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.323" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 Power Pro 2000-MR, ReloadSwiss RS 52, ReloadSwiss RS 60 rank at the top here: for 8 x 75 S with the .323 | 165gr | Peregrine Plainsmaster (VLR-4) 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.