Load Specifications
Bullet Manufacturer:RWS
Bullet Weight:198 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:1:13.5
Load data in caliber 8 x 57 PCC with .323 | 198gr | RWS ID Classic bullet and 102 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 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.
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>> | 84% | 56,275 psi | 88% | 2710 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 57,638 psi | 90% | 2776 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,937 psi | 80% | 2756 fps | 99.2% |
| Accurate 4064 | <<locked>> | 86% | 56,652 psi | 89% | 2762 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 57,058 psi | 89% | 2864 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 55,767 psi | 87% | 2953 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 82% | 55,767 psi | 87% | 2789 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 56,710 psi | 89% | 2792 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 54,404 psi | 85% | 2848 fps | 97.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 56,057 psi | 88% | 2917 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 54,360 psi | 85% | 2844 fps | 97.8% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 54,360 psi | 85% | 2844 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 57,537 psi | 90% | 2815 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 54,389 psi | 85% | 2789 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 54,215 psi | 85% | 2867 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 55,303 psi | 87% | 2890 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 57,145 psi | 90% | 2890 fps | 98.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,647 psi | 79% | 2835 fps | 97.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,877 psi | 75% | 2779 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,785 psi | 65% | 2694 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 54,708 psi | 86% | 2963 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,477 psi | 87% | 2805 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 46,514 psi | 73% | 2759 fps | 96.2% |
| Bofors RP3 | <<locked>> | 86% | 54,882 psi | 86% | 2785 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,647 psi | 79% | 2835 fps | 97.3% |
| Bofors RP7 | <<locked>> | 90% | 54,302 psi | 85% | 2762 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 86% | 55,361 psi | 87% | 2802 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 55,593 psi | 87% | 2861 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 90% | 55,724 psi | 87% | 2825 fps | 98.3% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 55,854 psi | 88% | 2841 fps | 96.1% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 54,621 psi | 86% | 2822 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 82% | 56,362 psi | 88% | 2799 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 54,433 psi | 85% | 2792 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,550 psi | 89% | 2835 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 55,840 psi | 88% | 2900 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,230 psi | 57% | 1719 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,435 psi | 90% | 2799 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 56,942 psi | 89% | 2772 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,333 psi | 88% | 2776 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,622 psi | 87% | 2759 fps | 99.1% |
| IMR 4350 | <<locked>> | 94% | 55,143 psi | 86% | 2795 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,883 psi | 88% | 2792 fps | 99% |
| IMR 4831 | <<locked>> | 96% | 57,493 psi | 90% | 2854 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,825 psi | 87% | 2815 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 57,551 psi | 90% | 2831 fps | 96.6% |
| Lovex D073.6 | <<locked>> | 82% | 55,941 psi | 88% | 2759 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 54,621 psi | 86% | 2713 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,420 psi | 88% | 2769 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,767 psi | 87% | 2785 fps | 99.7% |
| Lovex S070 | <<locked>> | 94% | 57,203 psi | 90% | 2828 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,453 psi | 67% | 2612 fps | 97.7% |
| Norma 201 | <<locked>> | 82% | 54,360 psi | 85% | 2730 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,172 psi | 86% | 2730 fps | 100% |
| Norma 203B | <<locked>> | 86% | 57,174 psi | 90% | 2825 fps | 100% |
| Norma 204 | <<locked>> | 94% | 55,666 psi | 87% | 2844 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 53,838 psi | 84% | 2920 fps | 99% |
| Norma URP | <<locked>> | 94% | 55,782 psi | 87% | 2848 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 54,288 psi | 85% | 2799 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 54,433 psi | 85% | 2848 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,266 psi | 69% | 2697 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,898 psi | 58% | 1762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,100 psi | 86% | 2779 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,216 psi | 87% | 2854 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,042 psi | 86% | 2887 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 56,913 psi | 89% | 2887 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,463 psi | 87% | 2917 fps | 100% |
| Rottweil R 902 | <<locked>> | 84% | 55,071 psi | 86% | 2733 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 54,752 psi | 86% | 2776 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 56,289 psi | 88% | 2822 fps | 97% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 56,565 psi | 89% | 2881 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 90% | 54,302 psi | 85% | 2762 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,767 psi | 87% | 2785 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 55,941 psi | 88% | 2759 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,420 psi | 88% | 2769 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 57,203 psi | 90% | 2828 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,376 psi | 88% | 2838 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 56,840 psi | 89% | 2792 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 57,624 psi | 90% | 2812 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,303 psi | 87% | 2664 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 56,144 psi | 88% | 2667 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,738 psi | 87% | 2743 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 56,057 psi | 88% | 2874 fps | 98.2% |
| Somchem S335 | <<locked>> | 82% | 54,911 psi | 86% | 2664 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,449 psi | 88% | 2779 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 54,795 psi | 86% | 2772 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 54,636 psi | 86% | 2848 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 57,029 psi | 89% | 2854 fps | 98.9% |
| Vihtavuori N133 | <<locked>> | 82% | 55,753 psi | 87% | 2648 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,201 psi | 87% | 2694 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,680 psi | 87% | 2710 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,101 psi | 88% | 2749 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,302 psi | 85% | 2792 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,240 psi | 77% | 2720 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 86% | 57,392 psi | 90% | 2756 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 57,145 psi | 90% | 2851 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,693 psi | 84% | 2854 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 54,346 psi | 85% | 2907 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 54,012 psi | 85% | 2766 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,840 psi | 88% | 2864 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,192 psi | 68% | 2825 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,143 psi | 85% | 2769 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,563 psi | 84% | 2792 fps | 97.5% |
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% | 49,530 psi | 78% | 2618 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,543 psi | 75% | 2615 fps | 97.1% |
| Accurate 3100 | <<locked>> | 88% | 33,866 psi | 53% | 2431 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 46,920 psi | 74% | 2621 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,462 psi | 56% | 2480 fps | 97.4% |
| Accurate High Country | <<locked>> | 96% | 48,515 psi | 76% | 2828 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 52,373 psi | 82% | 2740 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,425 psi | 70% | 2592 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 44,918 psi | 70% | 2680 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,718 psi | 76% | 2799 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 44,817 psi | 70% | 2677 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 44,817 psi | 70% | 2677 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,773 psi | 70% | 2618 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,892 psi | 75% | 2684 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,780 psi | 55% | 2490 fps | 97.5% |
| Alliant Reloder-17 | 62.8 gr | 80% | 39,218 psi | 61% | 2612 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 92% | 44,266 psi | 69% | 2671 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 96% | 44,440 psi | 70% | 2720 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,050 psi | 42% | 2300 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,737 psi | 54% | 2526 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 84% | 30,908 psi | 48% | 2464 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,953 psi | 81% | 2753 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 43,613 psi | 68% | 2700 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 44,918 psi | 70% | 2628 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 44,440 psi | 70% | 2720 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 39,856 psi | 62% | 2500 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 45,455 psi | 71% | 2638 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 80% | 37,362 psi | 59% | 2523 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 82% | 43,062 psi | 67% | 2602 fps | 95.5% |
| Hodgdon H4831 | <<locked>> | 98% | 52,243 psi | 82% | 2785 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 51,155 psi | 80% | 2766 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 52,939 psi | 83% | 2746 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,285 psi | 51% | 2388 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,327 psi | 77% | 2726 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 38,972 psi | 61% | 2589 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,137 psi | 43% | 1539 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,604 psi | 79% | 2700 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,301 psi | 84% | 2723 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,731 psi | 73% | 2625 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,878 psi | 77% | 2651 fps | 98.1% |
| IMR 4350 | <<locked>> | 84% | 40,248 psi | 63% | 2533 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,075 psi | 64% | 2526 fps | 96.2% |
| IMR 4831 | <<locked>> | 80% | 34,171 psi | 54% | 2438 fps | 97.1% |
| IMR 4895 | <<locked>> | 80% | 49,124 psi | 77% | 2710 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 50,720 psi | 79% | 2723 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 80% | 52,431 psi | 82% | 2713 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,300 psi | 80% | 2664 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,847 psi | 73% | 2625 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,754 psi | 61% | 2484 fps | 97% |
| Lovex S070 | <<locked>> | 80% | 36,912 psi | 58% | 2461 fps | 95.2% |
| Lovex S071 | <<locked>> | 94% | 34,954 psi | 55% | 2457 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 51,242 psi | 80% | 2684 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,735 psi | 81% | 2684 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,253 psi | 74% | 2671 fps | 100% |
| Norma 204 | <<locked>> | 88% | 45,542 psi | 71% | 2674 fps | 95.6% |
| Norma MRP | <<locked>> | 90% | 38,218 psi | 60% | 2618 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 35,317 psi | 55% | 2474 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 80% | 47,384 psi | 74% | 2694 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 36,666 psi | 57% | 2516 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 98% | 41,133 psi | 64% | 2635 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,630 psi | 43% | 1575 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,498 psi | 71% | 2621 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,445 psi | 81% | 2795 fps | 100% |
| ReloadSwiss RS 60 | 62.8 gr | 80% | 41,669 psi | 65% | 2671 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,027 psi | 55% | 2493 fps | 97% |
| ReloadSwiss RS 70 | 63.8 gr | 80% | 34,360 psi | 54% | 2497 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 48,704 psi | 76% | 2638 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,264 psi | 66% | 2572 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 94% | 49,458 psi | 78% | 2713 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 92% | 43,294 psi | 68% | 2654 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 39,856 psi | 62% | 2500 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,754 psi | 61% | 2484 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,431 psi | 82% | 2713 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,847 psi | 73% | 2625 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,912 psi | 58% | 2461 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,294 psi | 68% | 2625 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,084 psi | 83% | 2740 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,705 psi | 79% | 2707 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,996 psi | 81% | 2618 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,874 psi | 69% | 2490 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,869 psi | 59% | 2428 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 42,888 psi | 67% | 2648 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 51,851 psi | 81% | 2621 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 52,823 psi | 83% | 2726 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,815 psi | 67% | 2575 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 31,749 psi | 50% | 2434 fps | 99.1% |
| Somchem S385 | <<locked>> | 90% | 41,278 psi | 65% | 2585 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 52,504 psi | 82% | 2605 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,820 psi | 77% | 2605 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,023 psi | 77% | 2618 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,756 psi | 64% | 2507 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,782 psi | 58% | 2480 fps | 97.6% |
| Vihtavuori N165 | <<locked>> | 94% | 40,422 psi | 63% | 2559 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 47,427 psi | 74% | 2612 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,260 psi | 57% | 2480 fps | 97.3% |
| Vihtavuori N555 | <<locked>> | 82% | 29,689 psi | 47% | 2379 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 98% | 50,676 psi | 79% | 2844 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,926 psi | 56% | 2448 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 37,507 psi | 59% | 2526 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 84% | 25,483 psi | 40% | 2323 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,647 psi | 79% | 2713 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 43,482 psi | 68% | 2621 fps | 95.1% |
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 102 powders for 8 x 57 PCC loaded with the .323 | 198gr | RWS ID Classic. Alliant Reloder-26 delivers the highest muzzle velocity at 2,963 fps; across all powders the maximum-charge window runs from 1,719 fps to 2,963 fps. Accurate 3100 gives the best case fill at 100 %, and 102 of the 102 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 198.0 gr projectile in 0.323" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, 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, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for 8 x 57 PCC with the .323 | 198gr | RWS ID Classic 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.