Load Specifications
Load data in caliber 8 x 75 RS with .323 | 180gr | Sako Powerhead Blade bullet and 83 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 60 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.
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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>> | 84% | 49,806 psi | 90% | 2687 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 47,166 psi | 86% | 2697 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 49,632 psi | 90% | 2766 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 47,471 psi | 86% | 2743 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 46,412 psi | 84% | 2799 fps | 98.3% |
| ADI AR 2206H | <<locked>> | 86% | 49,124 psi | 89% | 2772 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 90% | 47,050 psi | 85% | 2720 fps | 98.7% |
| ADI Benchmark 8208 | <<locked>> | 84% | 48,356 psi | 88% | 2730 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 84% | 48,254 psi | 88% | 2717 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 48,080 psi | 87% | 2871 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 49,501 psi | 90% | 2792 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 88% | 46,963 psi | 85% | 2756 fps | 98.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,936 psi | 89% | 2861 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 96% | 49,763 psi | 90% | 2904 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,432 psi | 62% | 2582 fps | 96.7% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 48,602 psi | 88% | 2782 fps | 98.7% |
| Bofors RP3 | <<locked>> | 92% | 49,617 psi | 90% | 2805 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 47,427 psi | 86% | 2671 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 84% | 47,036 psi | 85% | 2753 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 82% | 48,457 psi | 88% | 2841 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 90% | 47,572 psi | 86% | 2759 fps | 98% |
| Hodgdon H4895 | <<locked>> | 86% | 49,545 psi | 90% | 2785 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,020 psi | 82% | 2743 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 48,298 psi | 88% | 2812 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,882 psi | 63% | 1719 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 47,718 psi | 87% | 2736 fps | 99.5% |
| IMR 3031 | <<locked>> | 86% | 49,081 psi | 89% | 2776 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 49,530 psi | 90% | 2756 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 49,443 psi | 90% | 2753 fps | 96% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,616 psi | 86% | 2799 fps | 98.5% |
| IMR 4895 | <<locked>> | 88% | 48,138 psi | 87% | 2789 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 84% | 48,356 psi | 88% | 2730 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 86% | 47,906 psi | 87% | 2749 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 49,284 psi | 89% | 2707 fps | 99.4% |
| Lovex S062 | <<locked>> | 90% | 49,226 psi | 89% | 2756 fps | 99.9% |
| Lovex S065 | <<locked>> | 96% | 48,167 psi | 87% | 2740 fps | 97.3% |
| Lovex S070 | <<locked>> | 98% | 48,675 psi | 88% | 2769 fps | 96.3% |
| Norma 201 | <<locked>> | 86% | 47,819 psi | 87% | 2720 fps | 99.8% |
| Norma 202 | <<locked>> | 86% | 48,298 psi | 88% | 2730 fps | 100% |
| Norma 203B | <<locked>> | 90% | 49,414 psi | 90% | 2802 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 49,647 psi | 90% | 2848 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 90% | 49,632 psi | 90% | 2825 fps | 99.4% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,718 psi | 88% | 2838 fps | 97% |
| Ramshot TAC | <<locked>> | 84% | 48,399 psi | 88% | 2736 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 47,732 psi | 87% | 2756 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 82% | 49,124 psi | 89% | 2726 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,186 psi | 64% | 1759 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 48,385 psi | 88% | 2743 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 46,528 psi | 84% | 2815 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 49,734 psi | 90% | 2910 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,705 psi | 90% | 2877 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 46,963 psi | 85% | 2838 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 84% | 48,834 psi | 89% | 2710 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 48,167 psi | 87% | 2720 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 94% | 49,501 psi | 90% | 2795 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 48,167 psi | 87% | 2740 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 47,906 psi | 87% | 2749 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 49,226 psi | 89% | 2756 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 98% | 48,675 psi | 88% | 2769 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 47,950 psi | 87% | 2802 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 49,835 psi | 90% | 2766 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 47,456 psi | 86% | 2740 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 49,661 psi | 90% | 2671 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 49,647 psi | 90% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 48,428 psi | 88% | 2694 fps | 95.9% |
| Somchem S321 | <<locked>> | 82% | 49,081 psi | 89% | 2759 fps | 99.9% |
| Somchem S335 | <<locked>> | 86% | 48,979 psi | 89% | 2671 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 49,545 psi | 90% | 2762 fps | 99.4% |
| Somchem S355 | <<locked>> | 92% | 47,079 psi | 85% | 2746 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,077 psi | 80% | 2795 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 82% | 49,806 psi | 90% | 2644 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 49,850 psi | 90% | 2661 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 47,572 psi | 86% | 2694 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 48,675 psi | 88% | 2710 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 48,356 psi | 88% | 2730 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 48,892 psi | 89% | 2795 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 84% | 48,631 psi | 88% | 2726 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 88% | 46,934 psi | 85% | 2703 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 48,037 psi | 87% | 2799 fps | 98.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,709 psi | 67% | 2657 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 49,690 psi | 90% | 2779 fps | 99.8% |
| Winchester 748 | <<locked>> | 84% | 48,037 psi | 87% | 2772 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 47,007 psi | 85% | 2749 fps | 99.5% |
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% | 43,903 psi | 80% | 2595 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,027 psi | 65% | 2507 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,004 psi | 78% | 2657 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 34,084 psi | 62% | 2493 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 34,940 psi | 63% | 2569 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 40,437 psi | 73% | 2612 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 80% | 34,374 psi | 62% | 2461 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,554 psi | 77% | 2625 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 80% | 42,177 psi | 77% | 2621 fps | 100% |
| Alliant Power Pro 2000-MR | 53.6 gr | 80% | 36,579 psi | 66% | 2625 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,620 psi | 61% | 2480 fps | 97.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,245 psi | 66% | 2543 fps | 96.4% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,882 psi | 65% | 2585 fps | 95.4% |
| Alliant Reloder-17 | 54.1 gr | 82% | 30,980 psi | 56% | 2490 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,401 psi | 59% | 2530 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,465 psi | 72% | 2608 fps | 96.8% |
| Bofors RP3 | <<locked>> | 80% | 32,750 psi | 59% | 2474 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,411 psi | 81% | 2618 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,901 psi | 74% | 2644 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,020 psi | 82% | 2779 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 82% | 36,390 psi | 66% | 2536 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 40,770 psi | 74% | 2625 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,589 psi | 56% | 2425 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,593 psi | 66% | 2589 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,730 psi | 47% | 1532 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,204 psi | 71% | 2575 fps | 98.2% |
| IMR 3031 | <<locked>> | 80% | 40,016 psi | 73% | 2625 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,013 psi | 65% | 2493 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,557 psi | 84% | 2700 fps | 95.3% |
| IMR 4831 | <<locked>> | 92% | 36,405 psi | 66% | 2582 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 37,086 psi | 67% | 2572 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 80% | 42,554 psi | 77% | 2625 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 80% | 38,885 psi | 71% | 2589 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 40,930 psi | 74% | 2556 fps | 98.2% |
| Lovex S062 | <<locked>> | 80% | 35,650 psi | 65% | 2497 fps | 98.1% |
| Lovex S065 | <<locked>> | 90% | 40,118 psi | 73% | 2589 fps | 95.2% |
| Lovex S070 | <<locked>> | 96% | 45,803 psi | 83% | 2717 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 39,436 psi | 72% | 2566 fps | 98.9% |
| Norma 202 | <<locked>> | 80% | 39,798 psi | 72% | 2582 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,592 psi | 65% | 2530 fps | 96.8% |
| Norma URP | <<locked>> | 90% | 35,737 psi | 65% | 2575 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 35,114 psi | 64% | 2539 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 96% | 42,656 psi | 77% | 2723 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 42,351 psi | 77% | 2621 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,597 psi | 75% | 2644 fps | 98.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,079 psi | 84% | 2674 fps | 98.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,092 psi | 47% | 1572 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 45,281 psi | 82% | 2690 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,536 psi | 68% | 2638 fps | 96.8% |
| ReloadSwiss RS 60 | 52.8 gr | 80% | 30,922 psi | 56% | 2500 fps | 97.9% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 37,507 psi | 68% | 2644 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,089 psi | 75% | 2720 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 43,192 psi | 78% | 2615 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,507 psi | 68% | 2520 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 80% | 30,908 psi | 56% | 2421 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,118 psi | 73% | 2589 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,885 psi | 71% | 2589 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 35,650 psi | 65% | 2497 fps | 98.1% |
| Shooters World SW4350 | <<locked>> | 96% | 45,803 psi | 83% | 2717 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,024 psi | 58% | 2467 fps | 95.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,451 psi | 73% | 2595 fps | 96.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,914 psi | 71% | 2579 fps | 97.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,263 psi | 75% | 2533 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,982 psi | 62% | 2398 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 45,165 psi | 82% | 2638 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 45,745 psi | 83% | 2703 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 40,625 psi | 74% | 2533 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,176 psi | 73% | 2595 fps | 97.9% |
| Somchem S355 | <<locked>> | 80% | 31,923 psi | 58% | 2431 fps | 96.1% |
| Somchem S365 | <<locked>> | 86% | 27,876 psi | 51% | 2408 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 46,789 psi | 85% | 2602 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,524 psi | 75% | 2530 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,811 psi | 67% | 2510 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,695 psi | 68% | 2520 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,385 psi | 55% | 2375 fps | 97% |
| Vihtavuori N160 | <<locked>> | 90% | 37,507 psi | 68% | 2579 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 42,380 psi | 77% | 2618 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 80% | 36,158 psi | 66% | 2503 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 36,680 psi | 67% | 2579 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 98% | 34,432 psi | 62% | 2605 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,951 psi | 56% | 2395 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 41,887 psi | 76% | 2664 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,189 psi | 69% | 2582 fps | 98.1% |
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 83 powders for 8 x 75 RS loaded with the .323 | 180gr | Sako Powerhead Blade. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,910 fps; across all powders the maximum-charge window runs from 1,719 fps to 2,910 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 83 of the 83 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 62–90 %, 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. Alliant Reloder-16, Alliant Reloder-23, Hodgdon Hybrid 100V 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 60, Alliant Reloder-17 rank at the top here: for 8 x 75 RS 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.