Load Specifications
Load data in caliber 8 x 60 RS with .323 | 146gr | Hammer Lever Stone Hammer bullet and 44 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon BL-C2, Lovex D073.6 and Shooters World Match Rifle.
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>> | 90% | 43,511 psi | 88% | 2759 fps | 99.8% |
| Accurate 2460 | <<locked>> | 86% | 41,510 psi | 84% | 2746 fps | 97.8% |
| Accurate 2495 | <<locked>> | 98% | 44,034 psi | 89% | 2835 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 42,032 psi | 85% | 2792 fps | 97.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 43,961 psi | 89% | 2858 fps | 98.9% |
| Accurate LT-30 | <<locked>> | 82% | 43,033 psi | 87% | 2674 fps | 99.1% |
| Accurate LT-32 | <<locked>> | 82% | 43,453 psi | 88% | 2684 fps | 97.7% |
| ADI AR 2219 | <<locked>> | 84% | 44,034 psi | 89% | 2815 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 92% | 42,975 psi | 87% | 2835 fps | 100% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 44,454 psi | 90% | 2851 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 86% | 43,947 psi | 89% | 2782 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 44,469 psi | 90% | 2713 fps | 99.5% |
| Hodgdon Benchmark | <<locked>> | 88% | 42,844 psi | 87% | 2723 fps | 96.4% |
| Hodgdon BL-C2 | <<locked>> | 92% | 42,960 psi | 87% | 2831 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 86% | 42,946 psi | 87% | 2795 fps | 99% |
| Hodgdon H335 | <<locked>> | 86% | 43,656 psi | 89% | 2812 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,735 psi | 66% | 1778 fps | 100% |
| IMR 3031 | <<locked>> | 94% | 43,671 psi | 89% | 2874 fps | 99.6% |
| IMR 4198 | <<locked>> | 84% | 42,902 psi | 87% | 2720 fps | 100% |
| Lovex D073.5 | <<locked>> | 88% | 44,440 psi | 90% | 2802 fps | 97.2% |
| Lovex D073.6 | <<locked>> | 94% | 43,076 psi | 87% | 2825 fps | 97.7% |
| Norma 200 | <<locked>> | 82% | 43,671 psi | 89% | 2756 fps | 100% |
| Norma 201 | <<locked>> | 94% | 44,222 psi | 90% | 2799 fps | 96.3% |
| Norma 202 | <<locked>> | 94% | 44,382 psi | 90% | 2825 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,822 psi | 67% | 1821 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 42,467 psi | 86% | 2762 fps | 97.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 42,757 psi | 87% | 2881 fps | 96.7% |
| Rottweil R 901 | <<locked>> | 90% | 42,511 psi | 86% | 2756 fps | 98% |
| Rottweil R 902 | <<locked>> | 96% | 44,382 psi | 90% | 2792 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 94% | 43,076 psi | 87% | 2825 fps | 97.7% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 44,483 psi | 90% | 2818 fps | 98.5% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 42,177 psi | 86% | 2746 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 44,353 psi | 90% | 2733 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 43,250 psi | 88% | 2723 fps | 99% |
| Somchem S321 | <<locked>> | 88% | 42,960 psi | 87% | 2795 fps | 96.2% |
| Somchem S335 | <<locked>> | 92% | 43,294 psi | 88% | 2733 fps | 98.9% |
| Vihtavuori N130 | <<locked>> | 88% | 44,512 psi | 90% | 2736 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 43,961 psi | 89% | 2736 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 96% | 42,540 psi | 86% | 2795 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 94% | 42,047 psi | 85% | 2753 fps | 98.4% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 40,712 psi | 83% | 2736 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 90% | 42,772 psi | 87% | 2762 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 96% | 43,134 psi | 87% | 2789 fps | 98.2% |
| Winchester 748 | <<locked>> | 92% | 44,077 psi | 89% | 2854 fps | 97.1% |
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% | 31,401 psi | 64% | 2500 fps | 97.8% |
| Accurate 2460 | <<locked>> | 80% | 33,634 psi | 68% | 2572 fps | 95.5% |
| Accurate 2495 | <<locked>> | 82% | 25,266 psi | 51% | 2398 fps | 95.8% |
| Accurate 2520 | <<locked>> | 84% | 33,924 psi | 69% | 2618 fps | 95.1% |
| Accurate 4064 | <<locked>> | 90% | 31,415 psi | 64% | 2582 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 40,538 psi | 82% | 2625 fps | 98.7% |
| Accurate LT-32 | <<locked>> | 80% | 40,901 psi | 83% | 2635 fps | 97.1% |
| ADI AR 2219 | <<locked>> | 80% | 38,348 psi | 78% | 2703 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 80% | 28,863 psi | 59% | 2520 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 41,568 psi | 84% | 2795 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,187 psi | 73% | 2628 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,001 psi | 79% | 2612 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 40,161 psi | 81% | 2671 fps | 95.7% |
| Hodgdon BL-C2 | 51.6 gr | 90% | 39,943 psi | 81% | 2769 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 34,925 psi | 71% | 2625 fps | 97.2% |
| Hodgdon H335 | <<locked>> | 80% | 35,288 psi | 72% | 2635 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,105 psi | 49% | 1588 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 27,499 psi | 56% | 2480 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 37,811 psi | 77% | 2621 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 38,537 psi | 78% | 2684 fps | 95.7% |
| Lovex D073.6 | 48.8 gr | 88% | 34,708 psi | 70% | 2648 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 40,799 psi | 83% | 2703 fps | 100% |
| Norma 201 | <<locked>> | 92% | 41,611 psi | 84% | 2746 fps | 95.5% |
| Norma 202 | <<locked>> | 84% | 31,995 psi | 65% | 2552 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,091 psi | 49% | 1627 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 37,173 psi | 75% | 2651 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 39,885 psi | 81% | 2815 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 82% | 33,214 psi | 67% | 2546 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 94% | 41,756 psi | 85% | 2743 fps | 95.5% |
| Shooters World Match Rifle | 48.8 gr | 88% | 34,708 psi | 70% | 2648 fps | 95.3% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 38,754 psi | 79% | 2703 fps | 97.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,883 psi | 75% | 2638 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 32,460 psi | 66% | 2477 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 29,602 psi | 60% | 2425 fps | 95.3% |
| Somchem S321 | <<locked>> | 86% | 39,972 psi | 81% | 2733 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 29,501 psi | 60% | 2421 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 34,606 psi | 70% | 2539 fps | 99.2% |
| Vihtavuori N133 | <<locked>> | 80% | 30,095 psi | 61% | 2441 fps | 97.2% |
| Vihtavuori N135 | <<locked>> | 80% | 25,048 psi | 51% | 2372 fps | 95.3% |
| Vihtavuori N140 | <<locked>> | 86% | 32,285 psi | 65% | 2539 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 98% | 38,000 psi | 77% | 2677 fps | 95% |
| Vihtavuori N530 | <<locked>> | 88% | 39,987 psi | 81% | 2703 fps | 95% |
| Vihtavuori N540 | <<locked>> | 88% | 33,069 psi | 67% | 2572 fps | 95.3% |
| Winchester 748 | <<locked>> | 88% | 38,363 psi | 78% | 2733 fps | 95.5% |
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 79 powders for 8 x 60 RS loaded with the .323 | 146gr | Hammer Lever Stone Hammer. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,881 fps; across all powders the maximum-charge window runs from 1,778 fps to 2,881 fps. Accurate 4064 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 66–90 %, leaving at least 10 % headroom. The 146.0 gr projectile in 0.323" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, Alliant Reloder- TS 15.5, 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. Hodgdon BL-C2, Lovex D073.6, Shooters World Match Rifle rank at the top here: for 8 x 60 RS with the .323 | 146gr | Hammer Lever Stone Hammer they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, ADI AR 2206H 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.