Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:200 gr
Bullet Diameter:0.323"
Bullet Length:<<locked>>
Caliber:8 x 57 PCC load data
Case Length (l3):2.244"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:90 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:23.62"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:11.5
Load data in caliber 8 x 57 PCC with .323 | 200gr | Peregrine VLR-4 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, 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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 86% | 57,246 psi | 90% | 2707 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,912 psi | 88% | 2733 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,443 psi | 76% | 2703 fps | 98.8% |
| Accurate 4064 | <<locked>> | 88% | 57,479 psi | 90% | 2759 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,534 psi | 85% | 2815 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 57,334 psi | 90% | 2795 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,969 psi | 86% | 2749 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,144 psi | 88% | 2858 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,014 psi | 88% | 2740 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 53,983 psi | 85% | 2871 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 55,985 psi | 88% | 2854 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,288 psi | 87% | 2769 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,666 psi | 87% | 2792 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,608 psi | 87% | 2874 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 57,029 psi | 89% | 2900 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,143 psi | 86% | 2844 fps | 97.9% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,356 psi | 76% | 2779 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,701 psi | 72% | 2726 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,958 psi | 63% | 2641 fps | 97.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,011 psi | 82% | 2910 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 57,276 psi | 90% | 2815 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 56,086 psi | 88% | 2785 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,356 psi | 76% | 2779 fps | 96.7% |
| Bofors RP7 | <<locked>> | 92% | 55,825 psi | 87% | 2772 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 57,377 psi | 90% | 2720 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,738 psi | 87% | 2769 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,782 psi | 89% | 2805 fps | 100% |
| Hodgdon H414 | <<locked>> | 94% | 57,305 psi | 90% | 2871 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 92% | 57,203 psi | 90% | 2828 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 82% | 54,317 psi | 85% | 2753 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,840 psi | 88% | 2795 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,360 psi | 85% | 2789 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 57,667 psi | 90% | 2910 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,969 psi | 56% | 1699 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,593 psi | 87% | 2759 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 54,868 psi | 86% | 2733 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,447 psi | 85% | 2733 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 57,276 psi | 90% | 2769 fps | 99.2% |
| IMR 4350 | <<locked>> | 96% | 56,652 psi | 89% | 2802 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 92% | 57,624 psi | 90% | 2799 fps | 99.2% |
| IMR 4831 | <<locked>> | 96% | 55,100 psi | 86% | 2808 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 57,130 psi | 90% | 2818 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 55,695 psi | 87% | 2785 fps | 96.2% |
| IMR 8208 XBR | <<locked>> | 82% | 56,014 psi | 88% | 2740 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 57,406 psi | 90% | 2766 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,304 psi | 88% | 2723 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 57,711 psi | 90% | 2772 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 57,305 psi | 90% | 2792 fps | 99.8% |
| Lovex S070 | <<locked>> | 94% | 54,868 psi | 86% | 2779 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,972 psi | 63% | 2552 fps | 97.1% |
| Norma 201 | <<locked>> | 84% | 55,695 psi | 87% | 2736 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,652 psi | 89% | 2736 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,897 psi | 86% | 2779 fps | 100% |
| Norma 204 | <<locked>> | 96% | 57,406 psi | 90% | 2854 fps | 98% |
| Norma MRPᴾ | <<locked>> | 100% | 51,271 psi | 80% | 2864 fps | 98.6% |
| Norma URP | <<locked>> | 96% | 57,217 psi | 90% | 2854 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 55,738 psi | 87% | 2805 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 55,869 psi | 88% | 2854 fps | 99.6% |
| Ramshot TAC | <<locked>> | 82% | 56,159 psi | 88% | 2769 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,144 psi | 88% | 2782 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,579 psi | 57% | 1742 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,884 psi | 89% | 2792 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 56,826 psi | 89% | 2861 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 56,695 psi | 89% | 2894 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 54,491 psi | 85% | 2841 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 57,188 psi | 90% | 2923 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 56,420 psi | 88% | 2710 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 56,449 psi | 88% | 2740 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,941 psi | 88% | 2779 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 54,273 psi | 85% | 2776 fps | 96.5% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,114 psi | 85% | 2828 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 92% | 55,825 psi | 87% | 2772 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 94% | 57,305 psi | 90% | 2792 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 57,406 psi | 90% | 2766 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 57,711 psi | 90% | 2772 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,868 psi | 86% | 2779 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,288 psi | 85% | 2792 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,882 psi | 86% | 2749 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,782 psi | 87% | 2769 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,898 psi | 89% | 2671 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,302 psi | 85% | 2628 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 57,246 psi | 90% | 2749 fps | 99.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,621 psi | 84% | 2822 fps | 97.8% |
| Somchem S335 | <<locked>> | 84% | 56,391 psi | 88% | 2667 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,636 psi | 86% | 2740 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,072 psi | 88% | 2776 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 56,173 psi | 88% | 2769 fps | 96% |
| Somchem S365 | <<locked>> | 98% | 55,927 psi | 88% | 2854 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,592 psi | 86% | 2802 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 84% | 57,421 psi | 90% | 2651 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,637 psi | 89% | 2697 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 57,116 psi | 90% | 2713 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 57,696 psi | 90% | 2753 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,883 psi | 88% | 2799 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,224 psi | 74% | 2671 fps | 96.9% |
| Vihtavuori N530 | <<locked>> | 82% | 56,579 psi | 89% | 2743 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 55,288 psi | 87% | 2713 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,882 psi | 86% | 2802 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,894 psi | 80% | 2799 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,695 psi | 87% | 2772 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 57,043 psi | 89% | 2789 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 57,305 psi | 90% | 2871 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,857 psi | 64% | 2766 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,796 psi | 87% | 2776 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,314 psi | 80% | 2743 fps | 97% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 46,934 psi | 74% | 2569 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,730 psi | 72% | 2569 fps | 96.7% |
| Accurate 3100 | <<locked>> | 90% | 33,968 psi | 53% | 2425 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 44,483 psi | 70% | 2572 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,214 psi | 52% | 2421 fps | 96.7% |
| ADI AR 2206H | <<locked>> | 80% | 50,299 psi | 79% | 2690 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,772 psi | 67% | 2549 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 94% | 45,992 psi | 72% | 2687 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,475 psi | 82% | 2690 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,818 psi | 73% | 2749 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 43,004 psi | 67% | 2628 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,902 psi | 67% | 2572 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,847 psi | 72% | 2635 fps | 99.7% |
| Alliant Reloder-16 | 56.9 gr | 80% | 33,185 psi | 52% | 2438 fps | 96.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,376 psi | 59% | 2562 fps | 99.4% |
| Alliant Reloder-19 | <<locked>> | 94% | 45,368 psi | 71% | 2677 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 42,395 psi | 66% | 2664 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 84% | 27,151 psi | 43% | 2297 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 96% | 35,143 psi | 55% | 2526 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 86% | 31,125 psi | 49% | 2464 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,111 psi | 79% | 2707 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 42,815 psi | 67% | 2579 fps | 99.9% |
| Bofors RP5 | <<locked>> | 96% | 42,395 psi | 66% | 2664 fps | 95% |
| Bofors RP7 | <<locked>> | 82% | 40,582 psi | 64% | 2503 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 54,070 psi | 85% | 2674 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,214 psi | 82% | 2723 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,410 psi | 68% | 2585 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 82% | 38,203 psi | 60% | 2530 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 82% | 41,510 psi | 65% | 2556 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 50,879 psi | 80% | 2700 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,545 psi | 48% | 2336 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,326 psi | 74% | 2684 fps | 100% |
| Hodgdon Superformance | 68 gr | 84% | 39,958 psi | 63% | 2595 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,818 psi | 42% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,936 psi | 77% | 2657 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,401 psi | 81% | 2684 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,933 psi | 70% | 2582 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,340 psi | 74% | 2608 fps | 97.8% |
| IMR 4350 | <<locked>> | 86% | 41,205 psi | 65% | 2539 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,523 psi | 62% | 2484 fps | 95.7% |
| IMR 4831 | <<locked>> | 80% | 32,329 psi | 51% | 2385 fps | 96.4% |
| IMR 4895 | <<locked>> | 80% | 47,036 psi | 74% | 2664 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 98% | 52,185 psi | 82% | 2733 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 52,475 psi | 82% | 2690 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,140 psi | 79% | 2667 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,908 psi | 78% | 2625 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,107 psi | 71% | 2582 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,985 psi | 58% | 2434 fps | 96.5% |
| Lovex S070 | <<locked>> | 82% | 37,550 psi | 59% | 2464 fps | 95.4% |
| Lovex S071 | <<locked>> | 96% | 34,969 psi | 55% | 2448 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 49,211 psi | 77% | 2641 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,835 psi | 78% | 2641 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,179 psi | 71% | 2621 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 43,656 psi | 68% | 2625 fps | 95% |
| Norma MRP | <<locked>> | 92% | 38,783 psi | 61% | 2621 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 33,547 psi | 53% | 2425 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 80% | 45,469 psi | 71% | 2644 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 34,954 psi | 55% | 2467 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 52,489 psi | 82% | 2713 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,388 psi | 82% | 2726 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,267 psi | 43% | 1555 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,685 psi | 68% | 2572 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,269 psi | 77% | 2746 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,798 psi | 62% | 2621 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,040 psi | 52% | 2438 fps | 96.2% |
| ReloadSwiss RS 70 | 62.3 gr | 80% | 32,735 psi | 51% | 2444 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 53,084 psi | 83% | 2664 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,673 psi | 73% | 2592 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,219 psi | 63% | 2523 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 94% | 47,659 psi | 75% | 2664 fps | 95% |
| Rottweil R 905 | <<locked>> | 94% | 44,077 psi | 69% | 2657 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 82% | 40,582 psi | 64% | 2503 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,985 psi | 58% | 2434 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,140 psi | 79% | 2667 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,107 psi | 71% | 2582 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 37,550 psi | 59% | 2464 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,379 psi | 65% | 2575 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,097 psi | 80% | 2694 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,791 psi | 76% | 2664 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,401 psi | 79% | 2582 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,322 psi | 66% | 2454 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,551 psi | 60% | 2431 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 43,656 psi | 68% | 2651 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 49,980 psi | 78% | 2579 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,981 psi | 80% | 2684 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,901 psi | 64% | 2530 fps | 99.7% |
| Somchem S361 | <<locked>> | 96% | 52,388 psi | 82% | 2713 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 30,008 psi | 47% | 2379 fps | 98.6% |
| Somchem S385 | <<locked>> | 90% | 39,247 psi | 62% | 2533 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 50,952 psi | 80% | 2569 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,949 psi | 74% | 2566 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,239 psi | 74% | 2575 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,928 psi | 61% | 2464 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 34,882 psi | 55% | 2425 fps | 97% |
| Vihtavuori N165 | <<locked>> | 96% | 41,162 psi | 65% | 2559 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 52,895 psi | 83% | 2690 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,513 psi | 71% | 2569 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,374 psi | 54% | 2425 fps | 96.7% |
| Vihtavuori N555 | <<locked>> | 84% | 29,689 psi | 47% | 2372 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,374 psi | 54% | 2405 fps | 98.9% |
| Winchester 748 | <<locked>> | 80% | 53,359 psi | 84% | 2740 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 38,203 psi | 60% | 2530 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 86% | 25,527 psi | 40% | 2316 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,704 psi | 76% | 2671 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 44,527 psi | 70% | 2628 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 105 powders for 8 x 57 PCC loaded with the .323 | 200gr | Peregrine VLR-4. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,923 fps; across all powders the maximum-charge window runs from 1,699 fps to 2,923 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 56–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.323" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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 57 PCC with the .323 | 200gr | Peregrine 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.