Load Specifications
Load data in caliber 6 mm ARC with .243 | 80gr | Barnes TTSX BT bullet and 46 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate 2520, ADI AR 2219 and Alliant AR-Comp.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 44,019 psi | 85% | 2703 fps | 99.8% |
| Accurate 2015 | <<locked>> | 98% | 46,673 psi | 90% | 2835 fps | 99.7% |
| Accurate 2460 | <<locked>> | 94% | 45,136 psi | 87% | 2828 fps | 97.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 37,362 psi | 72% | 2740 fps | 98.8% |
| Accurate 2520 | <<locked>> | 98% | 45,469 psi | 87% | 2874 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 88% | 45,266 psi | 87% | 2720 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 88% | 45,716 psi | 88% | 2726 fps | 97% |
| ADI AR 2207 | <<locked>> | 86% | 44,338 psi | 85% | 2769 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 45,513 psi | 88% | 2858 fps | 98.6% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 46,093 psi | 89% | 2913 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 92% | 44,469 psi | 86% | 2815 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 86% | 46,195 psi | 89% | 2779 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 46,079 psi | 89% | 2753 fps | 99% |
| Hodgdon Benchmark | <<locked>> | 96% | 46,746 psi | 90% | 2799 fps | 96% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 46,209 psi | 89% | 2904 fps | 96% |
| Hodgdon H322 | <<locked>> | 94% | 46,630 psi | 90% | 2877 fps | 98.8% |
| Hodgdon H335 | <<locked>> | 92% | 44,614 psi | 86% | 2841 fps | 97.6% |
| Hodgdon H4198 | <<locked>> | 84% | 43,874 psi | 84% | 2710 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,894 psi | 61% | 1752 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 43,859 psi | 84% | 2894 fps | 99% |
| IMR 4198 | <<locked>> | 92% | 46,818 psi | 90% | 2805 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 46,412 psi | 89% | 2854 fps | 97% |
| Lovex D073.5 | <<locked>> | 94% | 45,295 psi | 87% | 2828 fps | 96.1% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 42,757 psi | 82% | 2838 fps | 96.5% |
| Lovex S053 | <<locked>> | 82% | 46,064 psi | 89% | 2694 fps | 100% |
| Norma 200 | <<locked>> | 88% | 44,295 psi | 85% | 2792 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 44,367 psi | 85% | 2838 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,299 psi | 60% | 1785 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 46,441 psi | 89% | 2766 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 46,833 psi | 90% | 2854 fps | 97% |
| Rottweil R 901 | <<locked>> | 98% | 45,498 psi | 87% | 2825 fps | 97.5% |
| Shooters World AR Plus | <<locked>> | 88% | 46,412 psi | 89% | 2854 fps | 97% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 42,757 psi | 82% | 2838 fps | 96.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 44,541 psi | 86% | 2516 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 46,122 psi | 89% | 2861 fps | 97.8% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 45,803 psi | 88% | 2828 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 45,542 psi | 88% | 2759 fps | 97.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 38,638 psi | 74% | 2644 fps | 97.1% |
| Somchem S335ᴾ | <<locked>> | 100% | 46,644 psi | 90% | 2802 fps | 98.6% |
| Vihtavuori N120 | <<locked>> | 86% | 44,498 psi | 86% | 2723 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 45,600 psi | 88% | 2769 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 98% | 44,672 psi | 86% | 2762 fps | 99.4% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 39,276 psi | 76% | 2759 fps | 99% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 42,366 psi | 81% | 2772 fps | 97.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 40,930 psi | 79% | 2759 fps | 96.5% |
| Winchester 748 | <<locked>> | 98% | 44,875 psi | 86% | 2874 fps | 95.9% |
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 1680 | <<locked>> | 80% | 40,973 psi | 79% | 2648 fps | 99.5% |
| Accurate 2015 | <<locked>> | 82% | 27,905 psi | 54% | 2431 fps | 95.3% |
| Accurate 2460 | <<locked>> | 88% | 36,506 psi | 70% | 2657 fps | 95.1% |
| Accurate 2495 | <<locked>> | 90% | 26,397 psi | 51% | 2474 fps | 95.3% |
| Accurate 2520 | 26.6 gr | 94% | 39,030 psi | 75% | 2753 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 35,172 psi | 68% | 2516 fps | 96.3% |
| Accurate LT-32 | <<locked>> | 84% | 40,132 psi | 77% | 2618 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 36,637 psi | 70% | 2628 fps | 100% |
| ADI AR 2219 | 22.8 gr | 82% | 34,737 psi | 67% | 2631 fps | 95.9% |
| Alliant AR-Comp | 20.8 gr | 80% | 24,163 psi | 46% | 2382 fps | 96% |
| Alliant Reloder-10x | <<locked>> | 80% | 30,487 psi | 59% | 2513 fps | 97.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 38,043 psi | 73% | 2628 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 33,156 psi | 64% | 2493 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 94% | 44,077 psi | 85% | 2749 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 98% | 43,453 psi | 84% | 2851 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 84% | 33,910 psi | 65% | 2612 fps | 95.6% |
| Hodgdon H335 | <<locked>> | 86% | 36,434 psi | 70% | 2674 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 38,899 psi | 75% | 2612 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,003 psi | 44% | 1555 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 31,850 psi | 61% | 2621 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 32,750 psi | 63% | 2520 fps | 98.9% |
| Lovex D073.4 | <<locked>> | 84% | 39,871 psi | 77% | 2730 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 92% | 42,032 psi | 81% | 2766 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 98% | 39,552 psi | 76% | 2776 fps | 95.6% |
| Lovex S053 | <<locked>> | 80% | 43,323 psi | 83% | 2648 fps | 100% |
| Norma 200 | <<locked>> | 80% | 34,200 psi | 66% | 2589 fps | 99.1% |
| Norma 202 | <<locked>> | 94% | 36,869 psi | 71% | 2690 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,061 psi | 44% | 1598 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 43,671 psi | 84% | 2720 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 41,017 psi | 79% | 2743 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 92% | 38,072 psi | 73% | 2677 fps | 95.7% |
| Shooters World AR Plus | <<locked>> | 84% | 39,871 psi | 77% | 2730 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 98% | 39,552 psi | 76% | 2776 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,842 psi | 77% | 2444 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 37,231 psi | 72% | 2684 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 31,067 psi | 60% | 2510 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 37,768 psi | 73% | 2608 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 34,171 psi | 66% | 2546 fps | 95.7% |
| Somchem S335 | <<locked>> | 90% | 34,272 psi | 66% | 2559 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 36,854 psi | 71% | 2589 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 29,327 psi | 56% | 2425 fps | 96.9% |
| Vihtavuori N133 | <<locked>> | 84% | 29,138 psi | 56% | 2431 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 88% | 26,977 psi | 52% | 2454 fps | 95% |
| Vihtavuori N140 | <<locked>> | 94% | 34,911 psi | 67% | 2615 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 98% | 38,087 psi | 73% | 2700 fps | 95.7% |
| Winchester 748 | <<locked>> | 96% | 41,814 psi | 80% | 2812 fps | 95% |
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 46 powders for 6 mm ARC loaded with the .243 | 80gr | Barnes TTSX BT. Alliant AR-Comp delivers the highest muzzle velocity at 2,913 fps; across all powders the maximum-charge window runs from 1,752 fps to 2,913 fps. Accurate 2495 gives the best case fill at 100 %, and 46 of the 46 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (359 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 80.0 gr projectile in 0.243" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Alliant AR-Comp, Hodgdon BL-C2 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. Accurate 2520, ADI AR 2219, Alliant AR-Comp rank at the top here: for 6 mm ARC with the .243 | 80gr | Barnes TTSX BT 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.