Load Specifications
Load data in caliber 8 x 60 RS with .323 | 170gr | Speer Hot-Cor bullet and 58 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 Reloder-17 and Hodgdon LEVERevolution.
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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 44,106 psi | 89% | 2582 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 43,801 psi | 89% | 2631 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 43,047 psi | 87% | 2631 fps | 99.2% |
| Accurate 4064 | <<locked>> | 92% | 43,729 psi | 89% | 2661 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 43,192 psi | 88% | 2631 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 92% | 44,222 psi | 90% | 2631 fps | 96.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 42,844 psi | 87% | 2598 fps | 97.9% |
| Alliant AR-Comp | <<locked>> | 86% | 44,237 psi | 90% | 2651 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 43,076 psi | 87% | 2651 fps | 97.7% |
| Alliant Reloder-15 | <<locked>> | 90% | 43,830 psi | 89% | 2664 fps | 96.4% |
| Alliant Reloder-17 | <<locked>> | 96% | 42,989 psi | 87% | 2726 fps | 97% |
| Bofors RP3 | <<locked>> | 92% | 42,685 psi | 87% | 2654 fps | 97.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 42,540 psi | 86% | 2549 fps | 98.3% |
| Hodgdon BL-C2 | <<locked>> | 86% | 43,700 psi | 89% | 2667 fps | 98.6% |
| Hodgdon H4895 | <<locked>> | 86% | 43,497 psi | 88% | 2644 fps | 97.4% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 44,425 psi | 90% | 2713 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,243 psi | 69% | 1683 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 42,134 psi | 85% | 2598 fps | 97% |
| IMR 3031 | <<locked>> | 86% | 42,235 psi | 86% | 2651 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 43,685 psi | 89% | 2615 fps | 96.3% |
| IMR 4895 | <<locked>> | 88% | 41,930 psi | 85% | 2641 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 84% | 42,844 psi | 87% | 2598 fps | 97.9% |
| Lovex D073.6 | <<locked>> | 88% | 44,469 psi | 90% | 2667 fps | 99.4% |
| Lovex S060 | <<locked>> | 86% | 44,092 psi | 89% | 2579 fps | 97% |
| Lovex S062 | <<locked>> | 90% | 43,062 psi | 87% | 2618 fps | 98.1% |
| Norma 201 | <<locked>> | 86% | 42,395 psi | 86% | 2592 fps | 97.9% |
| Norma 202 | <<locked>> | 86% | 42,308 psi | 86% | 2605 fps | 99.5% |
| Norma 203B | <<locked>> | 90% | 43,033 psi | 87% | 2654 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 90% | 42,873 psi | 87% | 2664 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 44,585 psi | 90% | 2664 fps | 97% |
| Ramshot X-Terminator | <<locked>> | 82% | 43,743 psi | 89% | 2592 fps | 96.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,563 psi | 70% | 1726 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 42,786 psi | 87% | 2710 fps | 96% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 42,931 psi | 87% | 2740 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 84% | 43,613 psi | 88% | 2592 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 88% | 42,786 psi | 87% | 2589 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 94% | 42,511 psi | 86% | 2644 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 88% | 44,469 psi | 90% | 2667 fps | 99.4% |
| Shooters World Precision | <<locked>> | 90% | 43,062 psi | 87% | 2618 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 44,367 psi | 90% | 2700 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 44,541 psi | 90% | 2654 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 44,425 psi | 90% | 2562 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 43,772 psi | 89% | 2559 fps | 99.9% |
| Somchem S321 | <<locked>> | 82% | 43,105 psi | 87% | 2625 fps | 98.2% |
| Somchem S335 | <<locked>> | 86% | 43,700 psi | 89% | 2562 fps | 99.9% |
| Somchem S341 | <<locked>> | 86% | 43,091 psi | 87% | 2615 fps | 96.6% |
| Somchem S355 | <<locked>> | 94% | 43,598 psi | 88% | 2651 fps | 97.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,695 psi | 76% | 2618 fps | 97.1% |
| Vihtavuori N130 | <<locked>> | 82% | 44,338 psi | 90% | 2546 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 44,367 psi | 90% | 2559 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 44,063 psi | 89% | 2628 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 42,670 psi | 87% | 2589 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 94% | 41,916 psi | 85% | 2592 fps | 98.2% |
| Vihtavuori N530 | <<locked>> | 84% | 42,830 psi | 87% | 2595 fps | 98% |
| Vihtavuori N540 | <<locked>> | 90% | 43,903 psi | 89% | 2628 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 43,337 psi | 88% | 2621 fps | 97.1% |
| Winchester 748 | <<locked>> | 86% | 44,498 psi | 90% | 2687 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 88% | 43,540 psi | 88% | 2654 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 2015 | <<locked>> | 80% | 39,059 psi | 79% | 2490 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 31,314 psi | 64% | 2382 fps | 99.4% |
| Accurate 2520 | <<locked>> | 80% | 37,478 psi | 76% | 2523 fps | 98.3% |
| Accurate 4064 | <<locked>> | 80% | 29,660 psi | 60% | 2359 fps | 97% |
| ADI AR 2206H | <<locked>> | 82% | 38,159 psi | 77% | 2526 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 90% | 41,597 psi | 84% | 2579 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,666 psi | 76% | 2493 fps | 96.6% |
| Alliant AR-Comp | <<locked>> | 80% | 36,332 psi | 74% | 2513 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 35,462 psi | 72% | 2493 fps | 95.5% |
| Alliant Reloder-15 | <<locked>> | 88% | 40,973 psi | 83% | 2608 fps | 95.6% |
| Alliant Reloder-17 | 54.4 gr | 92% | 37,637 psi | 76% | 2605 fps | 95.1% |
| Bofors RP3 | <<locked>> | 86% | 34,708 psi | 70% | 2487 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,827 psi | 81% | 2497 fps | 97.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,592 psi | 72% | 2500 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 80% | 35,911 psi | 73% | 2484 fps | 95.2% |
| Hodgdon LEVERevolution | 48.3 gr | 82% | 34,200 psi | 69% | 2490 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,396 psi | 52% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 36,999 psi | 75% | 2493 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 34,563 psi | 70% | 2497 fps | 99.4% |
| IMR 4064 | <<locked>> | 88% | 41,046 psi | 83% | 2562 fps | 95.6% |
| IMR 4895 | <<locked>> | 84% | 36,985 psi | 75% | 2536 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 37,666 psi | 76% | 2493 fps | 96.6% |
| Lovex D073.6 | <<locked>> | 80% | 33,794 psi | 69% | 2451 fps | 97.2% |
| Lovex S060 | <<locked>> | 82% | 39,088 psi | 79% | 2477 fps | 95.6% |
| Lovex S062 | <<locked>> | 82% | 33,562 psi | 68% | 2415 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 34,983 psi | 71% | 2434 fps | 95.8% |
| Norma 202 | <<locked>> | 80% | 35,027 psi | 71% | 2454 fps | 98.2% |
| Norma 203B | <<locked>> | 86% | 37,797 psi | 77% | 2546 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 88% | 40,089 psi | 81% | 2608 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 82% | 38,986 psi | 79% | 2552 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,031 psi | 83% | 2539 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,570 psi | 52% | 1539 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 39,871 psi | 81% | 2648 fps | 95.1% |
| ReloadSwiss RS 60 | 50.9 gr | 86% | 33,170 psi | 67% | 2507 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 80% | 38,769 psi | 79% | 2500 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 80% | 33,359 psi | 68% | 2388 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 88% | 34,838 psi | 71% | 2484 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,794 psi | 69% | 2451 fps | 97.2% |
| Shooters World Precision | <<locked>> | 82% | 33,562 psi | 68% | 2415 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 38,856 psi | 79% | 2589 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 39,044 psi | 79% | 2546 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,869 psi | 75% | 2418 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,110 psi | 61% | 2280 fps | 97.8% |
| Somchem S321 | <<locked>> | 80% | 40,335 psi | 82% | 2569 fps | 97.6% |
| Somchem S335 | <<locked>> | 80% | 36,172 psi | 73% | 2418 fps | 99% |
| Somchem S341 | <<locked>> | 84% | 40,306 psi | 82% | 2559 fps | 95.8% |
| Somchem S355 | <<locked>> | 88% | 36,187 psi | 73% | 2500 fps | 95.3% |
| Somchem S365 | <<locked>> | 96% | 33,373 psi | 68% | 2513 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 41,901 psi | 85% | 2503 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,912 psi | 75% | 2425 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 32,068 psi | 65% | 2392 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 80% | 32,967 psi | 67% | 2388 fps | 98% |
| Vihtavuori N150 | <<locked>> | 86% | 32,256 psi | 65% | 2388 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 37,463 psi | 76% | 2487 fps | 96.6% |
| Vihtavuori N540 | <<locked>> | 80% | 31,734 psi | 64% | 2372 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 38,087 psi | 77% | 2513 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 36,158 psi | 73% | 2520 fps | 97.1% |
| Winchester StaBALL Match | <<locked>> | 82% | 35,752 psi | 73% | 2493 fps | 95.2% |
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 84 powders for 8 x 60 RS loaded with the .323 | 170gr | Speer Hot-Cor. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,740 fps; across all powders the maximum-charge window runs from 1,683 fps to 2,740 fps. Accurate 4350 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 69–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.323" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. 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 Reloder-17, Hodgdon LEVERevolution rank at the top here: for 8 x 60 RS with the .323 | 170gr | Speer Hot-Cor they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4350, Alliant Power Pro 2000-MR, Alliant Reloder-16 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.