Load Specifications
Load data in caliber 8 x 64 S with .323 | 170gr | Remington SP Core-Lokt bullet and 86 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR 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% | 50,952 psi | 87% | 2717 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 52,750 psi | 90% | 2785 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 51,735 psi | 88% | 2779 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 50,633 psi | 86% | 2789 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 51,576 psi | 88% | 2815 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,891 psi | 80% | 2805 fps | 97% |
| ADI AR 2206H | <<locked>> | 88% | 50,169 psi | 85% | 2795 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 94% | 51,111 psi | 87% | 2789 fps | 98.3% |
| ADI Benchmark 8208 | <<locked>> | 88% | 52,663 psi | 90% | 2805 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 88% | 52,315 psi | 89% | 2792 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 50,647 psi | 86% | 2851 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 52,504 psi | 89% | 2943 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 50,227 psi | 86% | 2808 fps | 99.3% |
| Alliant Reloder-10x | <<locked>> | 82% | 50,850 psi | 87% | 2726 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 50,981 psi | 87% | 2828 fps | 98.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,586 psi | 79% | 2812 fps | 97.1% |
| Alliant Reloder-17 | <<locked>> | 98% | 50,647 psi | 86% | 2917 fps | 99.2% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 52,982 psi | 90% | 2707 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 52,924 psi | 90% | 2854 fps | 98.3% |
| Bofors RP3 | <<locked>> | 94% | 50,444 psi | 86% | 2822 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 51,445 psi | 88% | 2746 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 88% | 51,314 psi | 87% | 2831 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 86% | 52,939 psi | 90% | 2920 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 82% | 49,734 psi | 85% | 2756 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 50,633 psi | 86% | 2779 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 51,851 psi | 88% | 2828 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 88% | 50,560 psi | 86% | 2805 fps | 99.1% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,743 psi | 73% | 2697 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 52,243 psi | 89% | 2884 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,722 psi | 59% | 1729 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 51,764 psi | 88% | 2808 fps | 99.2% |
| IMR 3031 | <<locked>> | 90% | 52,895 psi | 90% | 2848 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 50,575 psi | 86% | 2776 fps | 98.4% |
| IMR 4198 | <<locked>> | 82% | 51,416 psi | 88% | 2694 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,773 psi | 76% | 2746 fps | 96.6% |
| IMR 4895 | <<locked>> | 92% | 52,228 psi | 89% | 2861 fps | 99% |
| IMR 8208 XBR | <<locked>> | 88% | 52,663 psi | 90% | 2805 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 84% | 52,663 psi | 90% | 2792 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 90% | 52,417 psi | 89% | 2828 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 50,401 psi | 86% | 2730 fps | 98.7% |
| Lovex S062 | <<locked>> | 92% | 50,053 psi | 85% | 2776 fps | 99.5% |
| Lovex S065ᴾ | <<locked>> | 100% | 52,228 psi | 89% | 2805 fps | 96.6% |
| Norma 201 | <<locked>> | 90% | 52,054 psi | 89% | 2795 fps | 99.6% |
| Norma 202 | <<locked>> | 90% | 52,402 psi | 89% | 2805 fps | 100% |
| Norma 203B | <<locked>> | 92% | 50,140 psi | 85% | 2815 fps | 98.7% |
| Norma URPᴾ | <<locked>> | 100% | 46,992 psi | 80% | 2802 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 92% | 50,314 psi | 86% | 2838 fps | 98.6% |
| Ramshot TAC | <<locked>> | 88% | 53,069 psi | 90% | 2812 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 88% | 52,243 psi | 89% | 2835 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 50,459 psi | 86% | 2749 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,041 psi | 60% | 1768 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 52,170 psi | 89% | 2792 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 52,620 psi | 90% | 2812 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 50,575 psi | 86% | 2887 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 50,560 psi | 86% | 2927 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,833 psi | 80% | 2825 fps | 96.6% |
| Rottweil R 901 | <<locked>> | 86% | 50,183 psi | 85% | 2740 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 52,431 psi | 89% | 2792 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 96% | 49,995 psi | 85% | 2808 fps | 99.2% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 52,228 psi | 89% | 2805 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 90% | 52,417 psi | 89% | 2828 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 50,053 psi | 85% | 2776 fps | 99.5% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 52,040 psi | 89% | 2759 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 51,953 psi | 88% | 2871 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 51,619 psi | 88% | 2746 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 50,995 psi | 87% | 2782 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 51,677 psi | 88% | 2815 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 50,836 psi | 87% | 2700 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 50,488 psi | 86% | 2697 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 50,125 psi | 85% | 2782 fps | 99.6% |
| Somchem S335 | <<locked>> | 88% | 50,125 psi | 85% | 2700 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 50,604 psi | 86% | 2782 fps | 98.7% |
| Somchem S355 | <<locked>> | 96% | 50,908 psi | 87% | 2812 fps | 99.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,742 psi | 71% | 2746 fps | 98.8% |
| Vihtavuori N130 | <<locked>> | 84% | 50,850 psi | 87% | 2677 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 50,836 psi | 87% | 2694 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 51,677 psi | 88% | 2769 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 52,852 psi | 90% | 2782 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 52,460 psi | 89% | 2802 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 49,342 psi | 84% | 2802 fps | 97.3% |
| Vihtavuori N530 | <<locked>> | 86% | 49,676 psi | 85% | 2753 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 92% | 51,256 psi | 87% | 2779 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 48,588 psi | 83% | 2808 fps | 97% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 50,604 psi | 86% | 2792 fps | 99.2% |
| Winchester 748 | <<locked>> | 88% | 52,315 psi | 89% | 2851 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 51,256 psi | 87% | 2825 fps | 99.2% |
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% | 42,322 psi | 72% | 2579 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,050 psi | 78% | 2680 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 34,896 psi | 59% | 2487 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,220 psi | 70% | 2628 fps | 99.3% |
| Accurate 4064 | <<locked>> | 80% | 32,982 psi | 56% | 2464 fps | 98.5% |
| Accurate 4350 | <<locked>> | 96% | 40,857 psi | 70% | 2690 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 38,986 psi | 66% | 2579 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 86% | 39,972 psi | 68% | 2582 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,017 psi | 70% | 2598 fps | 98% |
| Alliant AR-Comp | <<locked>> | 80% | 40,161 psi | 68% | 2605 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 47,500 psi | 81% | 2795 fps | 98.8% |
| Alliant Power Pro 2000-MR | 55 gr | 84% | 40,161 psi | 68% | 2697 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,314 psi | 55% | 2444 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,921 psi | 82% | 2680 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 37,144 psi | 63% | 2559 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 96% | 41,249 psi | 70% | 2700 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 88% | 36,260 psi | 62% | 2615 fps | 95.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,763 psi | 85% | 2657 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 40,393 psi | 69% | 2628 fps | 95.4% |
| Bofors RP3 | <<locked>> | 82% | 33,663 psi | 57% | 2493 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,931 psi | 73% | 2595 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,175 psi | 67% | 2608 fps | 98.2% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,888 psi | 73% | 2736 fps | 96.8% |
| Hodgdon H322 | <<locked>> | 80% | 46,659 psi | 79% | 2707 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 47,355 psi | 81% | 2726 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 42,453 psi | 72% | 2657 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 39,291 psi | 67% | 2592 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 35,563 psi | 61% | 2539 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,998 psi | 60% | 2543 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,860 psi | 44% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,724 psi | 64% | 2543 fps | 96.4% |
| IMR 3031 | <<locked>> | 80% | 38,174 psi | 65% | 2598 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 36,999 psi | 63% | 2513 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 48,472 psi | 83% | 2648 fps | 100% |
| IMR 4831 | <<locked>> | 96% | 39,378 psi | 67% | 2641 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 35,708 psi | 61% | 2536 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 41,017 psi | 70% | 2598 fps | 98% |
| Lovex D073.5 | <<locked>> | 80% | 45,788 psi | 78% | 2680 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 37,420 psi | 64% | 2559 fps | 98.7% |
| Lovex S060 | <<locked>> | 80% | 39,537 psi | 67% | 2526 fps | 96.5% |
| Lovex S062 | <<locked>> | 80% | 34,418 psi | 59% | 2467 fps | 96.3% |
| Lovex S065 | <<locked>> | 96% | 46,238 psi | 79% | 2703 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 38,189 psi | 65% | 2539 fps | 97.4% |
| Norma 202 | <<locked>> | 80% | 38,290 psi | 65% | 2556 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 36,535 psi | 62% | 2546 fps | 95.5% |
| Norma URP | <<locked>> | 96% | 41,191 psi | 70% | 2687 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 84% | 38,493 psi | 66% | 2612 fps | 95.8% |
| Ramshot TAC | <<locked>> | 84% | 46,688 psi | 79% | 2703 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,900 psi | 68% | 2608 fps | 96.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,382 psi | 76% | 2644 fps | 97.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,034 psi | 44% | 1581 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,905 psi | 78% | 2687 fps | 99.6% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 49,269 psi | 84% | 2756 fps | 95.1% |
| ReloadSwiss RS 52 | 52 gr | 82% | 38,363 psi | 65% | 2651 fps | 95.4% |
| ReloadSwiss RS 60 | 51.6 gr | 80% | 29,834 psi | 51% | 2448 fps | 95.2% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 43,685 psi | 74% | 2766 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 41,945 psi | 71% | 2595 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 36,332 psi | 62% | 2490 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 84% | 33,939 psi | 58% | 2493 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 46,238 psi | 79% | 2703 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,420 psi | 64% | 2559 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 34,418 psi | 59% | 2467 fps | 96.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 48,631 psi | 83% | 2703 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 37,579 psi | 64% | 2595 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 48,660 psi | 83% | 2700 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 44,570 psi | 76% | 2671 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,536 psi | 64% | 2546 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,842 psi | 68% | 2510 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,735 psi | 56% | 2372 fps | 98.9% |
| Somchem S321 | <<locked>> | 80% | 43,918 psi | 75% | 2674 fps | 98.8% |
| Somchem S335 | <<locked>> | 80% | 39,291 psi | 67% | 2513 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 38,493 psi | 66% | 2559 fps | 96% |
| Somchem S355 | <<locked>> | 84% | 34,969 psi | 60% | 2500 fps | 95.5% |
| Somchem S365 | <<locked>> | 92% | 32,343 psi | 55% | 2523 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 45,107 psi | 77% | 2589 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,943 psi | 68% | 2513 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,259 psi | 60% | 2487 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,100 psi | 61% | 2490 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 82% | 31,096 psi | 53% | 2388 fps | 95.7% |
| Vihtavuori N160 | <<locked>> | 94% | 40,799 psi | 69% | 2641 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 40,872 psi | 70% | 2592 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 80% | 34,708 psi | 59% | 2470 fps | 98.5% |
| Vihtavuori N550 | <<locked>> | 96% | 42,612 psi | 73% | 2697 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 36,376 psi | 62% | 2516 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 39,914 psi | 68% | 2631 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,564 psi | 62% | 2543 fps | 96.2% |
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 86 powders for 8 x 64 S loaded with the .323 | 170gr | Remington SP Core-Lokt. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,943 fps; across all powders the maximum-charge window runs from 1,729 fps to 2,943 fps. Accurate 4350 gives the best case fill at 100 %, and 86 of the 86 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. Accurate 4350, Alliant Reloder-16, 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 8 x 64 S with the .323 | 170gr | Remington SP Core-Lokt 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.