Load Specifications
Load data in caliber 6 mm ARC with .243 | 80gr | Hornady FMJ bullet and 50 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon BL-C2, Accurate 2520 and Winchester 748.
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 2015 | <<locked>> | 94% | 46,296 psi | 89% | 2858 fps | 99.8% |
| Accurate 2460 | <<locked>> | 90% | 45,121 psi | 87% | 2858 fps | 98% |
| Accurate 2495ᴾ | <<locked>> | 100% | 43,932 psi | 84% | 2884 fps | 99.8% |
| Accurate 2520 | <<locked>> | 94% | 45,107 psi | 87% | 2897 fps | 97.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 40,727 psi | 78% | 2844 fps | 97.9% |
| Accurate LT-30 | <<locked>> | 86% | 46,717 psi | 90% | 2782 fps | 99.2% |
| Accurate LT-32 | <<locked>> | 84% | 44,179 psi | 85% | 2736 fps | 97.3% |
| ADI AR 2207 | <<locked>> | 84% | 46,369 psi | 89% | 2825 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 44,338 psi | 85% | 2871 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 94% | 45,556 psi | 88% | 2864 fps | 95.8% |
| Alliant AR-Comp | <<locked>> | 96% | 45,861 psi | 88% | 2936 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 44,150 psi | 85% | 2835 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 82% | 44,802 psi | 86% | 2782 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 44,904 psi | 86% | 2766 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 92% | 45,745 psi | 88% | 2818 fps | 96.5% |
| Hodgdon BL-C2 | <<locked>> | 96% | 45,774 psi | 88% | 2930 fps | 96.7% |
| Hodgdon H322 | <<locked>> | 90% | 45,876 psi | 88% | 2897 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 88% | 43,700 psi | 84% | 2858 fps | 97.9% |
| Hodgdon H4198 | <<locked>> | 82% | 45,179 psi | 87% | 2769 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,489 psi | 62% | 1795 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 46,253 psi | 89% | 2969 fps | 99.7% |
| IMR 4198 | <<locked>> | 88% | 45,600 psi | 88% | 2815 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 45,556 psi | 88% | 2864 fps | 95.8% |
| Lovex D073.4 | <<locked>> | 84% | 45,455 psi | 87% | 2871 fps | 97.5% |
| Lovex D073.5 | <<locked>> | 90% | 45,034 psi | 87% | 2854 fps | 96.8% |
| Lovex D073.6 | <<locked>> | 98% | 46,137 psi | 89% | 2930 fps | 97.8% |
| Lovex S062ᴾ | <<locked>> | 100% | 44,817 psi | 86% | 2867 fps | 95.8% |
| Norma 200 | <<locked>> | 84% | 44,454 psi | 85% | 2818 fps | 100% |
| Norma 202 | <<locked>> | 96% | 44,628 psi | 86% | 2877 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,489 psi | 62% | 1837 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 45,890 psi | 88% | 2871 fps | 97.4% |
| Rottweil R 901 | <<locked>> | 94% | 46,035 psi | 89% | 2864 fps | 98.2% |
| Shooters World AR Plus | <<locked>> | 84% | 45,455 psi | 87% | 2871 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 98% | 46,137 psi | 89% | 2930 fps | 97.8% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 44,817 psi | 86% | 2867 fps | 95.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 45,774 psi | 88% | 2559 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 44,860 psi | 86% | 2871 fps | 98.1% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 45,150 psi | 87% | 2848 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 44,701 psi | 86% | 2779 fps | 98% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 43,410 psi | 83% | 2769 fps | 98.7% |
| Somchem S321 | <<locked>> | 92% | 46,354 psi | 89% | 2904 fps | 96.4% |
| Somchem S335 | <<locked>> | 96% | 46,209 psi | 89% | 2828 fps | 99% |
| Vihtavuori N120 | <<locked>> | 84% | 46,456 psi | 89% | 2779 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 44,788 psi | 86% | 2785 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 94% | 44,034 psi | 85% | 2782 fps | 99.6% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 45,136 psi | 87% | 2890 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 98% | 44,802 psi | 86% | 2851 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 94% | 45,890 psi | 88% | 2861 fps | 95.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 46,050 psi | 89% | 2890 fps | 98.3% |
| Winchester 748 | <<locked>> | 96% | 46,978 psi | 90% | 2953 fps | 97.2% |
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% | 29,863 psi | 57% | 2503 fps | 96.8% |
| Accurate 2460 | <<locked>> | 82% | 34,156 psi | 66% | 2628 fps | 95% |
| Accurate 2495 | <<locked>> | 84% | 25,831 psi | 50% | 2464 fps | 95.5% |
| Accurate 2520 | 27.1 gr | 88% | 36,753 psi | 71% | 2730 fps | 95.5% |
| Accurate 4064 | <<locked>> | 92% | 31,749 psi | 61% | 2638 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 38,827 psi | 75% | 2628 fps | 97.9% |
| Accurate LT-32 | <<locked>> | 80% | 39,175 psi | 75% | 2635 fps | 96.1% |
| ADI AR 2207 | <<locked>> | 80% | 40,915 psi | 79% | 2730 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 36,230 psi | 70% | 2700 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 92% | 42,699 psi | 82% | 2808 fps | 95% |
| Alliant AR-Comp | <<locked>> | 80% | 27,499 psi | 53% | 2520 fps | 98.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 34,447 psi | 66% | 2631 fps | 99% |
| Alliant Reloder-7 | <<locked>> | 80% | 42,438 psi | 82% | 2740 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 36,941 psi | 71% | 2608 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 40,756 psi | 78% | 2720 fps | 95.2% |
| Hodgdon BL-C2 | 28.6 gr | 92% | 40,103 psi | 77% | 2818 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 33,141 psi | 64% | 2621 fps | 96% |
| Hodgdon H335 | <<locked>> | 82% | 35,969 psi | 69% | 2694 fps | 95.9% |
| Hodgdon H4198 | <<locked>> | 80% | 42,757 psi | 82% | 2726 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,192 psi | 47% | 1608 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 29,820 psi | 57% | 2592 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 35,984 psi | 69% | 2625 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 92% | 42,699 psi | 82% | 2808 fps | 95% |
| Lovex D073.4 | <<locked>> | 80% | 39,204 psi | 75% | 2746 fps | 95.9% |
| Lovex D073.5 | <<locked>> | 86% | 39,015 psi | 75% | 2736 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 92% | 37,536 psi | 72% | 2759 fps | 95.7% |
| Lovex S062 | <<locked>> | 98% | 41,930 psi | 81% | 2812 fps | 95% |
| Norma 200 | <<locked>> | 80% | 38,914 psi | 75% | 2713 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 34,592 psi | 67% | 2661 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,931 psi | 46% | 1640 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 37,681 psi | 72% | 2703 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 86% | 36,013 psi | 69% | 2654 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 39,204 psi | 75% | 2746 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 92% | 37,536 psi | 72% | 2759 fps | 95.7% |
| Shooters World Precision | <<locked>> | 98% | 41,930 psi | 81% | 2812 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 43,772 psi | 84% | 2526 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 36,593 psi | 70% | 2697 fps | 96% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,114 psi | 68% | 2641 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 34,896 psi | 67% | 2575 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 31,778 psi | 61% | 2520 fps | 95.6% |
| Somchem S321 | <<locked>> | 90% | 43,482 psi | 84% | 2848 fps | 95.7% |
| Somchem S335 | <<locked>> | 84% | 32,169 psi | 62% | 2533 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 41,060 psi | 79% | 2690 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 33,214 psi | 64% | 2546 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 80% | 28,877 psi | 56% | 2448 fps | 96.2% |
| Vihtavuori N135 | <<locked>> | 84% | 27,238 psi | 52% | 2484 fps | 95.9% |
| Vihtavuori N140 | <<locked>> | 88% | 32,634 psi | 63% | 2589 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 92% | 42,859 psi | 82% | 2805 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 92% | 35,520 psi | 68% | 2674 fps | 95.6% |
| Winchester 748 | 28.1 gr | 92% | 41,292 psi | 79% | 2841 fps | 95.7% |
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 50 powders for 6 mm ARC loaded with the .243 | 80gr | Hornady FMJ. IMR 3031 delivers the highest muzzle velocity at 2,969 fps; across all powders the maximum-charge window runs from 1,795 fps to 2,969 fps. Accurate 2495 gives the best case fill at 100 %, and 50 of the 50 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (359 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 80.0 gr projectile in 0.243" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Hodgdon TrailBoss 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, Accurate 2520, Winchester 748 rank at the top here: for 6 mm ARC with the .243 | 80gr | Hornady FMJ 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.