Load Specifications
Load data in caliber 6 mm ARC with .243 | 105gr | Remington SP Extended-Range bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 52 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.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 44,991 psi | 87% | 2474 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 45,977 psi | 88% | 2526 fps | 99.8% |
| Accurate 2495 | <<locked>> | 92% | 44,527 psi | 86% | 2526 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 45,426 psi | 87% | 2566 fps | 99.7% |
| Accurate 4064 | <<locked>> | 94% | 44,048 psi | 85% | 2549 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 88% | 44,251 psi | 85% | 2533 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 94% | 44,962 psi | 86% | 2523 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 88% | 46,688 psi | 90% | 2546 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 88% | 45,411 psi | 87% | 2546 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 44,614 psi | 86% | 2585 fps | 98.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 46,079 psi | 88% | 2654 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 46,311 psi | 89% | 2589 fps | 98.7% |
| Alliant Reloder-10x | <<locked>> | 82% | 45,310 psi | 87% | 2484 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 44,396 psi | 85% | 2556 fps | 97% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 46,949 psi | 90% | 2680 fps | 98.4% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 45,963 psi | 88% | 2579 fps | 96.7% |
| Bofors RP3 | <<locked>> | 96% | 46,224 psi | 89% | 2602 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 46,050 psi | 88% | 2493 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 88% | 44,309 psi | 85% | 2562 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 86% | 45,730 psi | 88% | 2635 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 86% | 46,427 psi | 89% | 2549 fps | 100% |
| Hodgdon H4895 | <<locked>> | 88% | 44,527 psi | 86% | 2546 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 45,266 psi | 87% | 2608 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,982 psi | 65% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 44,918 psi | 86% | 2533 fps | 98% |
| IMR 3031 | <<locked>> | 94% | 47,021 psi | 90% | 2608 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 46,731 psi | 90% | 2546 fps | 97.5% |
| IMR 4198 | <<locked>> | 82% | 46,267 psi | 89% | 2454 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 45,411 psi | 87% | 2589 fps | 97.8% |
| IMR 8208 XBR | <<locked>> | 88% | 46,688 psi | 90% | 2546 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 84% | 46,021 psi | 88% | 2533 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 90% | 45,426 psi | 87% | 2566 fps | 99.7% |
| Lovex S060 | <<locked>> | 88% | 45,223 psi | 87% | 2477 fps | 97.6% |
| Lovex S062 | <<locked>> | 94% | 46,717 psi | 90% | 2562 fps | 99% |
| Norma 201 | <<locked>> | 90% | 45,934 psi | 88% | 2536 fps | 98.8% |
| Norma 202 | <<locked>> | 90% | 45,818 psi | 88% | 2546 fps | 99.9% |
| Norma 203B | <<locked>> | 94% | 46,514 psi | 89% | 2595 fps | 98% |
| Ramshot Big Game | <<locked>> | 94% | 46,731 psi | 90% | 2618 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 88% | 45,542 psi | 87% | 2562 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 84% | 45,034 psi | 86% | 2497 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,243 psi | 66% | 1614 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 46,340 psi | 89% | 2536 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 46,528 psi | 89% | 2657 fps | 97.4% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 47,065 psi | 90% | 2697 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 86% | 44,759 psi | 86% | 2493 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 92% | 46,340 psi | 89% | 2533 fps | 98.9% |
| Rottweil R 903 | <<locked>> | 98% | 46,093 psi | 89% | 2589 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 45,426 psi | 87% | 2566 fps | 99.7% |
| Shooters World Precision | <<locked>> | 94% | 46,717 psi | 90% | 2562 fps | 99% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 46,195 psi | 89% | 2500 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 45,078 psi | 87% | 2595 fps | 97.5% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 46,282 psi | 89% | 2503 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 45,368 psi | 87% | 2549 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 45,455 psi | 87% | 2457 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 44,411 psi | 85% | 2451 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 44,237 psi | 85% | 2526 fps | 98.8% |
| Somchem S335 | <<locked>> | 88% | 44,396 psi | 85% | 2454 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 46,992 psi | 90% | 2562 fps | 97.8% |
| Somchem S355 | <<locked>> | 96% | 44,309 psi | 85% | 2546 fps | 97.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,955 psi | 69% | 2470 fps | 97% |
| Vihtavuori N130 | <<locked>> | 84% | 44,933 psi | 86% | 2434 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 44,991 psi | 86% | 2451 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 44,860 psi | 86% | 2520 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 45,556 psi | 87% | 2520 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,192 psi | 81% | 2487 fps | 98.7% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 44,701 psi | 86% | 2556 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 86% | 45,977 psi | 88% | 2546 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 92% | 45,194 psi | 87% | 2543 fps | 99.9% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,788 psi | 86% | 2605 fps | 95.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 44,063 psi | 85% | 2516 fps | 97.6% |
| Winchester 748 | <<locked>> | 86% | 46,035 psi | 88% | 2592 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 84% | 46,209 psi | 89% | 2582 fps | 98.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 37,594 psi | 72% | 2349 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 40,306 psi | 78% | 2428 fps | 99.3% |
| Accurate 2495 | <<locked>> | 80% | 29,994 psi | 58% | 2254 fps | 99.5% |
| Accurate 2520 | <<locked>> | 80% | 34,185 psi | 66% | 2356 fps | 97.9% |
| Accurate 4064 | <<locked>> | 80% | 28,413 psi | 55% | 2228 fps | 97.2% |
| ADI AR 2206H | <<locked>> | 82% | 36,796 psi | 71% | 2388 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 90% | 39,929 psi | 77% | 2431 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,405 psi | 70% | 2356 fps | 96.7% |
| Alliant AR-Comp | <<locked>> | 80% | 34,534 psi | 66% | 2365 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 41,669 psi | 80% | 2533 fps | 97.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 43,236 psi | 83% | 2602 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 33,881 psi | 65% | 2352 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,815 psi | 82% | 2444 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 39,363 psi | 76% | 2461 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 35,911 psi | 69% | 2454 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 40,480 psi | 78% | 2477 fps | 95.2% |
| Bofors RP3 | <<locked>> | 86% | 33,185 psi | 64% | 2352 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,450 psi | 74% | 2356 fps | 97.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,011 psi | 65% | 2359 fps | 96.7% |
| Hodgdon CFE223 | <<locked>> | 82% | 40,089 psi | 77% | 2526 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 38,203 psi | 73% | 2405 fps | 99.7% |
| Hodgdon H4895 | <<locked>> | 80% | 34,650 psi | 67% | 2346 fps | 95.4% |
| Hodgdon LEVERevolution | 24.7 gr | 82% | 32,793 psi | 63% | 2349 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,367 psi | 49% | 1411 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 34,925 psi | 67% | 2336 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 30,487 psi | 59% | 2293 fps | 99% |
| IMR 4064 | <<locked>> | 90% | 38,798 psi | 75% | 2405 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 43,671 psi | 84% | 2415 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 35,259 psi | 68% | 2388 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 36,405 psi | 70% | 2356 fps | 96.7% |
| Lovex D073.5 | <<locked>> | 80% | 40,335 psi | 77% | 2434 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 80% | 32,271 psi | 62% | 2313 fps | 97.3% |
| Lovex S060 | <<locked>> | 80% | 35,752 psi | 69% | 2293 fps | 95% |
| Lovex S062 | <<locked>> | 82% | 32,169 psi | 62% | 2277 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 33,852 psi | 65% | 2300 fps | 96% |
| Norma 202 | <<locked>> | 80% | 33,576 psi | 64% | 2316 fps | 98.3% |
| Norma 203B | <<locked>> | 86% | 36,143 psi | 69% | 2402 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 88% | 38,174 psi | 73% | 2457 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 82% | 37,507 psi | 72% | 2411 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,320 psi | 76% | 2392 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,280 psi | 49% | 1440 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,640 psi | 78% | 2438 fps | 98.9% |
| ReloadSwiss RS 52 | 25.6 gr | 86% | 38,000 psi | 73% | 2497 fps | 95.1% |
| ReloadSwiss RS 60 | 26 gr | 86% | 31,676 psi | 61% | 2362 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 37,217 psi | 71% | 2352 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 80% | 32,285 psi | 62% | 2257 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 88% | 33,141 psi | 64% | 2343 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,271 psi | 62% | 2313 fps | 97.3% |
| Shooters World Precision | <<locked>> | 82% | 32,169 psi | 62% | 2277 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 43,192 psi | 83% | 2451 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 37,202 psi | 71% | 2441 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 43,149 psi | 83% | 2454 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 37,405 psi | 72% | 2402 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,476 psi | 68% | 2277 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,819 psi | 55% | 2149 fps | 97.8% |
| Somchem S321 | <<locked>> | 80% | 38,435 psi | 74% | 2421 fps | 97.6% |
| Somchem S335 | <<locked>> | 80% | 35,041 psi | 67% | 2287 fps | 99.1% |
| Somchem S341 | <<locked>> | 82% | 36,216 psi | 70% | 2365 fps | 95% |
| Somchem S355 | <<locked>> | 88% | 34,360 psi | 66% | 2352 fps | 95.2% |
| Somchem S365 | <<locked>> | 96% | 31,589 psi | 61% | 2362 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 39,784 psi | 76% | 2349 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 33,170 psi | 64% | 2241 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 80% | 30,501 psi | 59% | 2254 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 80% | 31,183 psi | 60% | 2247 fps | 98% |
| Vihtavuori N150 | <<locked>> | 90% | 31,140 psi | 60% | 2264 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 98% | 42,308 psi | 81% | 2513 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 37,956 psi | 73% | 2398 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 80% | 30,850 psi | 59% | 2260 fps | 97.4% |
| Vihtavuori N550 | <<locked>> | 98% | 41,916 psi | 81% | 2556 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 36,492 psi | 70% | 2369 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 37,275 psi | 72% | 2434 fps | 97.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,595 psi | 76% | 2464 fps | 96.9% |
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 72 powders for 6 mm ARC loaded with the .243 | 105gr | Remington SP Extended-Range. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,697 fps; across all powders the maximum-charge window runs from 1,578 fps to 2,697 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 72 of the 72 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (359 MPa), the top charges use 65–90 %, leaving at least 10 % headroom. The 105.0 gr projectile in 0.243" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-17, Hodgdon TrailBoss, ReloadSwiss RS 14 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, ReloadSwiss RS 52, Hodgdon LEVERevolution rank at the top here: for 6 mm ARC with the .243 | 105gr | Remington SP Extended-Range 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.