Load Specifications
Load data in caliber 8 x 60 RS with .323 | 180gr | Lapua Naturalis bullet and 65 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 Ramshot Big Game.
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.
A valid access license is required to use the Personalized Load Calculator.
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% | 44,208 psi | 90% | 2490 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 42,235 psi | 86% | 2490 fps | 99.4% |
| Accurate 2495 | <<locked>> | 92% | 43,149 psi | 88% | 2533 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 43,047 psi | 87% | 2543 fps | 99.3% |
| Accurate 4064 | <<locked>> | 94% | 43,120 psi | 87% | 2562 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 88% | 43,439 psi | 88% | 2543 fps | 97% |
| ADI AR 2208 | <<locked>> | 94% | 44,498 psi | 90% | 2539 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 86% | 43,265 psi | 88% | 2513 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 88% | 44,440 psi | 90% | 2562 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 43,714 psi | 89% | 2598 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 43,134 psi | 87% | 2559 fps | 97.8% |
| Alliant Reloder-15 | <<locked>> | 92% | 43,874 psi | 89% | 2572 fps | 96.5% |
| Alliant Reloder-17 | <<locked>> | 98% | 43,323 psi | 88% | 2638 fps | 97.2% |
| Bofors RP3 | <<locked>> | 94% | 42,438 psi | 86% | 2562 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 42,975 psi | 87% | 2467 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 88% | 43,772 psi | 89% | 2575 fps | 98.7% |
| Hodgdon CFE223 | <<locked>> | 84% | 42,322 psi | 86% | 2595 fps | 96% |
| Hodgdon H322 | <<locked>> | 82% | 43,584 psi | 88% | 2530 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 43,990 psi | 89% | 2543 fps | 99.7% |
| Hodgdon H4895 | <<locked>> | 88% | 43,700 psi | 89% | 2556 fps | 97.6% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 42,018 psi | 85% | 2572 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,765 psi | 68% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 42,511 psi | 86% | 2516 fps | 97.2% |
| IMR 3031 | <<locked>> | 88% | 42,380 psi | 86% | 2562 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 43,932 psi | 89% | 2526 fps | 96.5% |
| IMR 4895 | <<locked>> | 90% | 42,192 psi | 86% | 2556 fps | 96.8% |
| IMR 8208 XBR | <<locked>> | 86% | 43,265 psi | 88% | 2513 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 82% | 42,047 psi | 85% | 2490 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 90% | 44,353 psi | 90% | 2575 fps | 99.5% |
| Lovex S060 | <<locked>> | 86% | 42,090 psi | 85% | 2448 fps | 96.6% |
| Lovex S062 | <<locked>> | 92% | 43,062 psi | 87% | 2526 fps | 98.2% |
| Norma 201 | <<locked>> | 88% | 42,279 psi | 86% | 2500 fps | 98% |
| Norma 202 | <<locked>> | 88% | 42,583 psi | 86% | 2520 fps | 99.6% |
| Norma 203B | <<locked>> | 92% | 43,004 psi | 87% | 2559 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 92% | 43,236 psi | 88% | 2579 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 86% | 42,264 psi | 86% | 2530 fps | 96.6% |
| Ramshot X-Terminator | <<locked>> | 84% | 44,280 psi | 90% | 2510 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,055 psi | 69% | 1640 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 42,772 psi | 87% | 2503 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 42,888 psi | 87% | 2618 fps | 96.2% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 43,395 psi | 88% | 2654 fps | 99.3% |
| Rottweil R 901 | <<locked>> | 86% | 43,439 psi | 88% | 2500 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 90% | 42,728 psi | 87% | 2500 fps | 98% |
| Rottweil R 903 | <<locked>> | 96% | 42,322 psi | 86% | 2549 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 44,353 psi | 90% | 2575 fps | 99.5% |
| Shooters World Precision | <<locked>> | 92% | 43,062 psi | 87% | 2526 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 41,771 psi | 85% | 2559 fps | 96.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 41,930 psi | 85% | 2513 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 41,989 psi | 85% | 2428 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 44,063 psi | 89% | 2474 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 43,526 psi | 88% | 2539 fps | 98.4% |
| Somchem S335 | <<locked>> | 88% | 43,743 psi | 89% | 2474 fps | 99.9% |
| Somchem S341 | <<locked>> | 88% | 43,453 psi | 88% | 2530 fps | 96.8% |
| Somchem S355 | <<locked>> | 96% | 43,439 psi | 88% | 2556 fps | 97.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,215 psi | 71% | 2474 fps | 96.3% |
| Vihtavuori N130 | <<locked>> | 82% | 42,366 psi | 86% | 2421 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 41,989 psi | 85% | 2431 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 44,092 psi | 89% | 2536 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 43,018 psi | 87% | 2503 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 96% | 41,916 psi | 85% | 2503 fps | 98.4% |
| Vihtavuori N530 | <<locked>> | 86% | 43,337 psi | 88% | 2510 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 92% | 44,193 psi | 90% | 2539 fps | 99.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 43,772 psi | 89% | 2536 fps | 97.3% |
| Winchester 748 | <<locked>> | 86% | 41,858 psi | 85% | 2546 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 90% | 43,903 psi | 89% | 2569 fps | 97.7% |
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% | 36,535 psi | 74% | 2356 fps | 99.9% |
| Accurate 2460 | <<locked>> | 80% | 39,392 psi | 80% | 2441 fps | 99% |
| Accurate 2495 | <<locked>> | 80% | 28,558 psi | 58% | 2244 fps | 99% |
| Accurate 2520 | <<locked>> | 80% | 34,824 psi | 71% | 2385 fps | 97.8% |
| Accurate 4064 | <<locked>> | 80% | 27,064 psi | 55% | 2218 fps | 96.2% |
| ADI AR 2206H | <<locked>> | 84% | 38,189 psi | 77% | 2441 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 92% | 41,858 psi | 85% | 2493 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,752 psi | 73% | 2365 fps | 96.1% |
| Alliant AR-Comp | <<locked>> | 80% | 33,953 psi | 69% | 2379 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 40,973 psi | 83% | 2543 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 35,447 psi | 72% | 2411 fps | 95.8% |
| Alliant Reloder-15 | <<locked>> | 88% | 38,537 psi | 78% | 2467 fps | 95% |
| Alliant Reloder-17 | 51.6 gr | 94% | 37,913 psi | 77% | 2523 fps | 95.4% |
| Bofors RP3 | <<locked>> | 88% | 34,476 psi | 70% | 2405 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,898 psi | 77% | 2369 fps | 97.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,243 psi | 67% | 2365 fps | 96% |
| Hodgdon CFE223 | <<locked>> | 82% | 39,566 psi | 80% | 2539 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 40,582 psi | 82% | 2477 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 80% | 41,075 psi | 83% | 2490 fps | 99.4% |
| Hodgdon H4895 | <<locked>> | 82% | 36,100 psi | 73% | 2405 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 34,389 psi | 70% | 2411 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,990 psi | 51% | 1427 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 35,085 psi | 71% | 2365 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 32,256 psi | 65% | 2362 fps | 99.2% |
| IMR 4064 | <<locked>> | 88% | 38,827 psi | 79% | 2428 fps | 95.1% |
| IMR 4895 | <<locked>> | 86% | 36,999 psi | 75% | 2451 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 35,752 psi | 73% | 2365 fps | 96.1% |
| Lovex D073.5 | <<locked>> | 80% | 39,247 psi | 80% | 2441 fps | 98.1% |
| Lovex D073.6 | <<locked>> | 80% | 31,270 psi | 63% | 2316 fps | 96.6% |
| Lovex S060 | <<locked>> | 82% | 37,072 psi | 75% | 2349 fps | 95.1% |
| Lovex S062 | <<locked>> | 84% | 33,359 psi | 68% | 2329 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 32,750 psi | 66% | 2300 fps | 95.2% |
| Norma 202 | <<locked>> | 80% | 32,851 psi | 67% | 2323 fps | 97.8% |
| Norma 203B | <<locked>> | 88% | 37,768 psi | 77% | 2457 fps | 95.4% |
| Ramshot Big Game | 50.2 gr | 90% | 40,451 psi | 82% | 2526 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 39,523 psi | 80% | 2477 fps | 95.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 38,885 psi | 79% | 2408 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,121 psi | 51% | 1463 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,219 psi | 82% | 2454 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 39,972 psi | 81% | 2559 fps | 95.3% |
| ReloadSwiss RS 60 | 47.2 gr | 86% | 31,111 psi | 63% | 2365 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 36,347 psi | 74% | 2365 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 82% | 33,301 psi | 68% | 2306 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 90% | 34,606 psi | 70% | 2398 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,270 psi | 63% | 2316 fps | 96.6% |
| Shooters World Precision | <<locked>> | 84% | 33,359 psi | 68% | 2329 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 39,088 psi | 79% | 2503 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 36,883 psi | 75% | 2411 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,896 psi | 71% | 2290 fps | 98.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,268 psi | 57% | 2159 fps | 97.3% |
| Somchem S321 | <<locked>> | 80% | 37,797 psi | 77% | 2431 fps | 97.1% |
| Somchem S335 | <<locked>> | 80% | 34,040 psi | 69% | 2290 fps | 98.7% |
| Somchem S341 | <<locked>> | 84% | 37,956 psi | 77% | 2428 fps | 95.2% |
| Somchem S355 | <<locked>> | 90% | 36,056 psi | 73% | 2411 fps | 95.4% |
| Somchem S365 | <<locked>> | 98% | 33,083 psi | 67% | 2421 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 39,769 psi | 81% | 2375 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,911 psi | 71% | 2300 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 29,834 psi | 61% | 2260 fps | 99.2% |
| Vihtavuori N140 | <<locked>> | 80% | 30,995 psi | 63% | 2264 fps | 97.6% |
| Vihtavuori N150 | <<locked>> | 88% | 32,024 psi | 65% | 2303 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 35,375 psi | 72% | 2356 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 80% | 29,747 psi | 60% | 2247 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 38,203 psi | 77% | 2428 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 34,055 psi | 69% | 2388 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 35,766 psi | 73% | 2411 fps | 95.4% |
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 65 powders for 8 x 60 RS loaded with the .323 | 180gr | Lapua Naturalis. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,654 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,654 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 65 of the 65 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.323" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Somchem S365 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, Ramshot Big Game rank at the top here: for 8 x 60 RS with the .323 | 180gr | Lapua Naturalis 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.