Load Specifications
Load data in caliber 8 x 64 S with .322 | 175gr | Prvi Partizan HP BT bullet and 85 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 ReloadSwiss RS 52.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 50,140 psi | 85% | 2654 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 51,677 psi | 88% | 2717 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 50,691 psi | 86% | 2713 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 53,156 psi | 90% | 2776 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 50,357 psi | 86% | 2746 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 45,861 psi | 78% | 2736 fps | 96.8% |
| ADI AR 2206H | <<locked>> | 90% | 52,417 psi | 89% | 2779 fps | 99% |
| ADI AR 2208 | <<locked>> | 94% | 50,111 psi | 85% | 2720 fps | 98.1% |
| ADI Benchmark 8208 | <<locked>> | 88% | 51,735 psi | 88% | 2736 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 88% | 51,256 psi | 87% | 2726 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 52,924 psi | 90% | 2835 fps | 99.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 51,547 psi | 88% | 2874 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 52,475 psi | 89% | 2792 fps | 99.5% |
| Alliant Reloder-10x | <<locked>> | 84% | 53,156 psi | 90% | 2703 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 50,169 psi | 85% | 2762 fps | 98.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,701 psi | 78% | 2740 fps | 96.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 53,011 psi | 90% | 2900 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 52,083 psi | 89% | 2641 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 51,851 psi | 88% | 2785 fps | 98.1% |
| Bofors RP3 | <<locked>> | 96% | 52,605 psi | 90% | 2805 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 86% | 50,894 psi | 87% | 2680 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 88% | 50,343 psi | 86% | 2762 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 86% | 51,895 psi | 88% | 2848 fps | 98.6% |
| Hodgdon H322 | <<locked>> | 84% | 52,344 psi | 89% | 2743 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 49,937 psi | 85% | 2717 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 50,749 psi | 86% | 2759 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 90% | 52,837 psi | 90% | 2789 fps | 99.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,061 psi | 72% | 2631 fps | 97.6% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 51,300 psi | 87% | 2815 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,722 psi | 59% | 1686 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 50,894 psi | 87% | 2743 fps | 99.1% |
| IMR 3031 | <<locked>> | 90% | 51,953 psi | 88% | 2782 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 52,736 psi | 90% | 2756 fps | 98.7% |
| IMR 4198 | <<locked>> | 82% | 50,720 psi | 86% | 2628 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,830 psi | 75% | 2680 fps | 96.4% |
| IMR 4895 | <<locked>> | 92% | 51,387 psi | 87% | 2795 fps | 99% |
| IMR 8208 XBR | <<locked>> | 88% | 51,735 psi | 88% | 2736 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 84% | 51,750 psi | 88% | 2726 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 90% | 51,285 psi | 87% | 2759 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 52,605 psi | 90% | 2713 fps | 99% |
| Lovex S062 | <<locked>> | 94% | 52,127 psi | 89% | 2756 fps | 99.7% |
| Lovex S065ᴾ | <<locked>> | 100% | 51,271 psi | 87% | 2736 fps | 96.5% |
| Norma 201 | <<locked>> | 90% | 51,097 psi | 87% | 2726 fps | 99.6% |
| Norma 202 | <<locked>> | 90% | 51,459 psi | 88% | 2736 fps | 100% |
| Norma 203B | <<locked>> | 94% | 52,330 psi | 89% | 2799 fps | 99% |
| Norma URPᴾ | <<locked>> | 100% | 45,774 psi | 78% | 2730 fps | 96.7% |
| Ramshot Big Game | <<locked>> | 94% | 52,881 psi | 90% | 2825 fps | 99% |
| Ramshot TAC | <<locked>> | 88% | 52,228 psi | 89% | 2746 fps | 96.9% |
| Ramshot Wild Boar | <<locked>> | 88% | 51,300 psi | 87% | 2766 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 86% | 52,794 psi | 90% | 2736 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,056 psi | 60% | 1726 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 51,343 psi | 87% | 2723 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 52,953 psi | 90% | 2874 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 52,765 psi | 90% | 2907 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,643 psi | 78% | 2753 fps | 96.4% |
| Rottweil R 901 | <<locked>> | 88% | 52,301 psi | 89% | 2720 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 51,532 psi | 88% | 2723 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 98% | 52,460 psi | 89% | 2795 fps | 99.4% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 51,271 psi | 87% | 2736 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 51,285 psi | 87% | 2759 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 52,127 psi | 89% | 2756 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 51,068 psi | 87% | 2690 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 50,952 psi | 87% | 2802 fps | 98.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 50,850 psi | 87% | 2680 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 50,125 psi | 85% | 2717 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 50,734 psi | 86% | 2746 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 50,212 psi | 85% | 2638 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 52,750 psi | 90% | 2677 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 52,808 psi | 90% | 2772 fps | 99.8% |
| Somchem S335 | <<locked>> | 90% | 52,301 psi | 89% | 2680 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 53,026 psi | 90% | 2766 fps | 99% |
| Somchem S355 | <<locked>> | 98% | 52,997 psi | 90% | 2792 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,959 psi | 70% | 2680 fps | 98.7% |
| Vihtavuori N130 | <<locked>> | 84% | 50,227 psi | 86% | 2615 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 50,183 psi | 85% | 2631 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 50,531 psi | 86% | 2703 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 52,025 psi | 89% | 2717 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 51,343 psi | 87% | 2730 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 48,501 psi | 83% | 2736 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 88% | 52,243 psi | 89% | 2740 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 92% | 50,082 psi | 85% | 2710 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,485 psi | 81% | 2736 fps | 96.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,705 psi | 85% | 2726 fps | 99.1% |
| Winchester 748 | <<locked>> | 88% | 51,155 psi | 87% | 2779 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 50,357 psi | 86% | 2756 fps | 99.1% |
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% | 41,597 psi | 71% | 2516 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,136 psi | 77% | 2612 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 34,229 psi | 58% | 2428 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,321 psi | 69% | 2562 fps | 99.2% |
| Accurate 4064 | <<locked>> | 80% | 32,387 psi | 55% | 2405 fps | 98.5% |
| Accurate 4350 | <<locked>> | 96% | 39,769 psi | 68% | 2621 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 38,290 psi | 65% | 2516 fps | 96.1% |
| ADI AR 2208 | <<locked>> | 86% | 39,189 psi | 67% | 2516 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,248 psi | 69% | 2533 fps | 97.9% |
| Alliant AR-Comp | <<locked>> | 80% | 39,131 psi | 67% | 2539 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,543 psi | 79% | 2726 fps | 98.7% |
| Alliant Power Pro 2000-MR | 52.8 gr | 84% | 39,450 psi | 67% | 2631 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 33,765 psi | 57% | 2438 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,108 psi | 80% | 2615 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 38,754 psi | 66% | 2546 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 96% | 40,495 psi | 69% | 2631 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 88% | 35,476 psi | 60% | 2546 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,052 psi | 84% | 2595 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 39,610 psi | 67% | 2562 fps | 95.2% |
| Bofors RP3 | <<locked>> | 82% | 33,054 psi | 56% | 2431 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,409 psi | 72% | 2533 fps | 98.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,421 psi | 65% | 2546 fps | 98.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,945 psi | 71% | 2667 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 80% | 45,745 psi | 78% | 2641 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,557 psi | 79% | 2661 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 41,669 psi | 71% | 2595 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 38,522 psi | 66% | 2526 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 34,722 psi | 59% | 2474 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,461 psi | 59% | 2484 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,730 psi | 44% | 1506 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,028 psi | 63% | 2480 fps | 96.3% |
| IMR 3031 | <<locked>> | 80% | 37,420 psi | 64% | 2536 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 38,740 psi | 66% | 2503 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 47,732 psi | 81% | 2585 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 41,017 psi | 70% | 2628 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 34,954 psi | 60% | 2474 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 40,248 psi | 69% | 2533 fps | 97.9% |
| Lovex D073.5 | <<locked>> | 80% | 44,976 psi | 77% | 2615 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 80% | 36,521 psi | 62% | 2493 fps | 98.5% |
| Lovex S060 | <<locked>> | 80% | 38,972 psi | 66% | 2464 fps | 96.4% |
| Lovex S062 | <<locked>> | 80% | 33,866 psi | 58% | 2408 fps | 96.2% |
| Lovex S065 | <<locked>> | 96% | 45,353 psi | 77% | 2638 fps | 95% |
| Norma 201 | <<locked>> | 80% | 37,623 psi | 64% | 2477 fps | 97.4% |
| Norma 202 | <<locked>> | 80% | 37,492 psi | 64% | 2490 fps | 99.2% |
| Norma 203B | <<locked>> | 82% | 35,868 psi | 61% | 2487 fps | 95.4% |
| Norma URP | <<locked>> | 96% | 40,393 psi | 69% | 2625 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 84% | 37,782 psi | 64% | 2546 fps | 95.6% |
| Ramshot TAC | <<locked>> | 84% | 45,759 psi | 78% | 2635 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,189 psi | 67% | 2543 fps | 96.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,685 psi | 74% | 2579 fps | 97.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,933 psi | 44% | 1539 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,121 psi | 77% | 2621 fps | 99.6% |
| ReloadSwiss RS 52 | 49.9 gr | 82% | 37,550 psi | 64% | 2582 fps | 95.2% |
| ReloadSwiss RS 60 | 49.5 gr | 80% | 29,240 psi | 50% | 2385 fps | 95% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 42,743 psi | 73% | 2697 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 41,205 psi | 70% | 2530 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 80% | 35,723 psi | 61% | 2428 fps | 96.8% |
| Rottweil R 903 | <<locked>> | 84% | 33,156 psi | 56% | 2428 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 45,353 psi | 77% | 2638 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,521 psi | 62% | 2493 fps | 98.5% |
| Shooters World Precision | <<locked>> | 80% | 33,866 psi | 58% | 2408 fps | 96.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,848 psi | 81% | 2638 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 36,840 psi | 63% | 2530 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,776 psi | 81% | 2635 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 43,772 psi | 75% | 2605 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,738 psi | 63% | 2480 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,131 psi | 67% | 2448 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,126 psi | 55% | 2313 fps | 98.8% |
| Somchem S321 | <<locked>> | 80% | 43,178 psi | 74% | 2612 fps | 98.8% |
| Somchem S335 | <<locked>> | 80% | 38,740 psi | 66% | 2454 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 37,840 psi | 64% | 2497 fps | 95.8% |
| Somchem S355 | <<locked>> | 84% | 34,360 psi | 58% | 2441 fps | 95.4% |
| Somchem S365 | <<locked>> | 92% | 31,792 psi | 54% | 2461 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 44,382 psi | 76% | 2526 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,247 psi | 67% | 2451 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,505 psi | 59% | 2428 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 35,534 psi | 60% | 2431 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 82% | 30,487 psi | 52% | 2329 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 96% | 42,496 psi | 72% | 2628 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 40,147 psi | 68% | 2530 fps | 98% |
| Vihtavuori N540 | <<locked>> | 80% | 34,084 psi | 58% | 2411 fps | 98.4% |
| Vihtavuori N550 | <<locked>> | 96% | 41,698 psi | 71% | 2631 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,694 psi | 61% | 2454 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 39,088 psi | 67% | 2566 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,810 psi | 61% | 2480 fps | 96% |
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 103 powders for 8 x 64 S loaded with the .322 | 175gr | Prvi Partizan HP BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,907 fps; across all powders the maximum-charge window runs from 1,686 fps to 2,907 fps. Accurate 4350 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.322" calls for a 1:15.5 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 60, ReloadSwiss RS 52 rank at the top here: for 8 x 64 S with the .322 | 175gr | Prvi Partizan HP BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.