Load Specifications
Bullet Manufacturer:SAKO
Bullet Weight:180 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:1:12.0
Load data in caliber 8 x 57 PCC with .323 | 180gr | Sako Powerhead Blade bullet and 100 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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 54,491 psi | 85% | 2782 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,695 psi | 89% | 2851 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,984 psi | 86% | 2874 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,057 psi | 88% | 2867 fps | 97.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,092 psi | 69% | 2759 fps | 97% |
| Accurate 4064 | <<locked>> | 90% | 57,000 psi | 89% | 2904 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 53,838 psi | 84% | 2946 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 86% | 57,363 psi | 90% | 2943 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,998 psi | 86% | 2890 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,083 psi | 82% | 2920 fps | 95.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,173 psi | 88% | 2890 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,595 psi | 90% | 2861 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,624 psi | 90% | 3071 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,013 psi | 86% | 2910 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,709 psi | 87% | 2936 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,114 psi | 86% | 3009 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,463 psi | 88% | 3041 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,010 psi | 80% | 2910 fps | 95.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,901 psi | 66% | 2789 fps | 99.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,529 psi | 74% | 2966 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,377 psi | 90% | 2959 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 55,825 psi | 87% | 2930 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,637 psi | 87% | 2900 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,580 psi | 90% | 2867 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,666 psi | 87% | 2917 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,710 psi | 89% | 2946 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 96% | 56,637 psi | 89% | 2999 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 94% | 57,217 psi | 90% | 2966 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 84% | 54,346 psi | 85% | 2900 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,926 psi | 86% | 2927 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,099 psi | 85% | 2933 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,479 psi | 90% | 3045 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,534 psi | 56% | 1788 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,709 psi | 87% | 2904 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,592 psi | 86% | 2881 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,317 psi | 85% | 2874 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,711 psi | 90% | 2910 fps | 98.5% |
| IMR 4350 | <<locked>> | 98% | 56,405 psi | 88% | 2933 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,186 psi | 85% | 2881 fps | 98% |
| IMR 4831 | <<locked>> | 98% | 54,447 psi | 85% | 2940 fps | 99.8% |
| IMR 4895 | <<locked>> | 88% | 57,159 psi | 90% | 2969 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,173 psi | 88% | 2890 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,305 psi | 90% | 2913 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,463 psi | 88% | 2867 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,609 psi | 90% | 2917 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,971 psi | 89% | 2927 fps | 99.3% |
| Lovex S070 | <<locked>> | 96% | 54,621 psi | 86% | 2910 fps | 98.3% |
| Norma 201 | <<locked>> | 86% | 55,840 psi | 88% | 2884 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,507 psi | 89% | 2884 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,897 psi | 86% | 2920 fps | 100% |
| Norma 204 | <<locked>> | 98% | 57,101 psi | 89% | 2982 fps | 96.9% |
| Norma MRPᴾ | <<locked>> | 100% | 47,282 psi | 74% | 2920 fps | 96.7% |
| Norma URP | <<locked>> | 98% | 56,579 psi | 89% | 2989 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 88% | 55,608 psi | 87% | 2949 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,303 psi | 87% | 2986 fps | 99% |
| Ramshot TAC | <<locked>> | 84% | 56,536 psi | 89% | 2913 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,391 psi | 88% | 2930 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,927 psi | 89% | 2890 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,071 psi | 57% | 1831 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,855 psi | 89% | 2927 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,289 psi | 88% | 3002 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,970 psi | 88% | 3035 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,537 psi | 90% | 3025 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,869 psi | 89% | 3058 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 84% | 56,550 psi | 89% | 2861 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,318 psi | 88% | 2881 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,695 psi | 87% | 2923 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,922 psi | 78% | 2890 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 94% | 55,637 psi | 87% | 2900 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,971 psi | 89% | 2927 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,305 psi | 90% | 2913 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,609 psi | 90% | 2917 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,621 psi | 86% | 2910 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,595 psi | 90% | 2986 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,868 psi | 86% | 2887 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,666 psi | 87% | 2910 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,246 psi | 90% | 2818 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,288 psi | 85% | 2772 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,319 psi | 90% | 2881 fps | 98.5% |
| Somchem S321 | <<locked>> | 82% | 57,406 psi | 90% | 2920 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,637 psi | 89% | 2815 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,578 psi | 86% | 2877 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,782 psi | 87% | 2917 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,795 psi | 86% | 2989 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,459 psi | 79% | 2867 fps | 96.8% |
| Vihtavuori N130 | <<locked>> | 82% | 56,811 psi | 89% | 2776 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,609 psi | 90% | 2802 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,376 psi | 88% | 2841 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,072 psi | 89% | 2861 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,377 psi | 90% | 2894 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,434 psi | 87% | 2933 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 84% | 56,753 psi | 89% | 2890 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,376 psi | 87% | 2858 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,317 psi | 85% | 2933 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,543 psi | 73% | 2867 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,564 psi | 87% | 2907 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 57,029 psi | 89% | 2936 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,884 psi | 89% | 3005 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,637 psi | 59% | 2805 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,709 psi | 87% | 2920 fps | 100% |
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 2015 | <<locked>> | 80% | 51,184 psi | 80% | 2736 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,381 psi | 68% | 2654 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,227 psi | 80% | 2818 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,948 psi | 72% | 2697 fps | 95.5% |
| Accurate 3100 | <<locked>> | 96% | 38,406 psi | 60% | 2644 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 41,104 psi | 64% | 2651 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 32,677 psi | 51% | 2530 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 47,224 psi | 74% | 2779 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 40,161 psi | 63% | 2625 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 98% | 48,892 psi | 77% | 2864 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,371 psi | 77% | 2785 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,285 psi | 79% | 2762 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,410 psi | 68% | 2818 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,001 psi | 63% | 2648 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,815 psi | 67% | 2713 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,953 psi | 52% | 2546 fps | 95.3% |
| Alliant Reloder-17 | 62.1 gr | 80% | 34,519 psi | 54% | 2618 fps | 97.8% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,964 psi | 75% | 2851 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,458 psi | 48% | 2503 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,389 psi | 55% | 2694 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,731 psi | 73% | 2785 fps | 99% |
| Bofors RP3 | <<locked>> | 80% | 39,682 psi | 62% | 2651 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 45,905 psi | 72% | 2733 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,937 psi | 80% | 2769 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,631 psi | 76% | 2808 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,408 psi | 63% | 2654 fps | 97.2% |
| Hodgdon H414 | <<locked>> | 88% | 43,366 psi | 68% | 2766 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 88% | 47,108 psi | 74% | 2792 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 47,674 psi | 75% | 2789 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,297 psi | 44% | 2388 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,077 psi | 69% | 2762 fps | 99.8% |
| Hodgdon Superformance | 72.2 gr | 88% | 42,815 psi | 67% | 2779 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,571 psi | 42% | 1601 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,759 psi | 72% | 2740 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 47,718 psi | 75% | 2779 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,206 psi | 66% | 2661 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,628 psi | 70% | 2684 fps | 96% |
| IMR 4350 | <<locked>> | 90% | 43,700 psi | 68% | 2710 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,105 psi | 66% | 2657 fps | 95.1% |
| IMR 4831 | <<locked>> | 84% | 34,055 psi | 53% | 2546 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 43,874 psi | 69% | 2743 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 80% | 49,371 psi | 77% | 2785 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,615 psi | 73% | 2753 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,963 psi | 74% | 2713 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 42,047 psi | 66% | 2661 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 36,753 psi | 58% | 2549 fps | 95.1% |
| Lovex S070 | <<locked>> | 88% | 42,221 psi | 66% | 2687 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 46,021 psi | 72% | 2723 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 46,760 psi | 73% | 2733 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,177 psi | 66% | 2700 fps | 99% |
| Norma 204 | <<locked>> | 94% | 49,879 psi | 78% | 2864 fps | 95.3% |
| Norma MRP | <<locked>> | 98% | 43,961 psi | 69% | 2854 fps | 95.7% |
| Norma URP | <<locked>> | 82% | 33,185 psi | 52% | 2536 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 42,134 psi | 66% | 2717 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 39,566 psi | 62% | 2694 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 49,487 psi | 78% | 2799 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,168 psi | 77% | 2815 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,258 psi | 83% | 2835 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,774 psi | 42% | 1637 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,814 psi | 64% | 2641 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,774 psi | 72% | 2825 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,796 psi | 58% | 2684 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 35,027 psi | 55% | 2608 fps | 95.7% |
| ReloadSwiss RS 70 | 67.8 gr | 86% | 37,289 psi | 58% | 2677 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 50,067 psi | 78% | 2762 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,830 psi | 69% | 2677 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 37,275 psi | 58% | 2592 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 98% | 46,557 psi | 73% | 2831 fps | 95% |
| Rottweil R 907 | <<locked>> | 88% | 45,905 psi | 72% | 2733 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 82% | 36,753 psi | 58% | 2549 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,615 psi | 73% | 2753 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,047 psi | 66% | 2661 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 42,221 psi | 66% | 2687 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,508 psi | 60% | 2648 fps | 98.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,659 psi | 75% | 2769 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,876 psi | 72% | 2749 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,427 psi | 74% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,610 psi | 62% | 2539 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,176 psi | 65% | 2602 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 53,635 psi | 84% | 2864 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,949 psi | 74% | 2674 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,529 psi | 74% | 2766 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 37,956 psi | 59% | 2595 fps | 98.6% |
| Somchem S365 | <<locked>> | 80% | 27,586 psi | 43% | 2425 fps | 96.4% |
| Somchem S385 | <<locked>> | 96% | 44,106 psi | 69% | 2753 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 53,461 psi | 84% | 2733 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,892 psi | 75% | 2667 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,642 psi | 68% | 2654 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,280 psi | 69% | 2667 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,216 psi | 57% | 2533 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 82% | 34,563 psi | 54% | 2539 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 49,676 psi | 78% | 2782 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,569 psi | 67% | 2654 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 33,968 psi | 53% | 2536 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 88% | 30,937 psi | 48% | 2526 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,966 psi | 50% | 2457 fps | 97.1% |
| Winchester 748 | <<locked>> | 80% | 49,734 psi | 78% | 2828 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 43,366 psi | 68% | 2766 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 92% | 28,631 psi | 45% | 2523 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,353 psi | 71% | 2749 fps | 99.7% |
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 100 powders for 8 x 57 PCC loaded with the .323 | 180gr | Sako Powerhead Blade. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,071 fps; across all powders the maximum-charge window runs from 1,788 fps to 3,071 fps. Accurate 3100 gives the best case fill at 100 %, and 100 of the 100 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 180.0 gr projectile in 0.323" calls for a 1:12.0 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 57 PCC with the .323 | 180gr | Sako Powerhead Blade 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.