Load Specifications
Load data in caliber 6 mm ARC with .243 | 74gr | Berger M bullet and 42 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate 2520, SNPE Vectan SP 10 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% | 46,108 psi | 89% | 2871 fps | 99.9% |
| Accurate 2015 | <<locked>> | 96% | 46,282 psi | 89% | 2959 fps | 99.5% |
| Accurate 2460 | <<locked>> | 92% | 44,947 psi | 86% | 2953 fps | 97.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 40,335 psi | 78% | 2920 fps | 99.1% |
| Accurate 2520 | <<locked>> | 96% | 44,672 psi | 86% | 2989 fps | 96.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 37,434 psi | 72% | 2874 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 88% | 46,760 psi | 90% | 2881 fps | 98.7% |
| Accurate LT-32 | <<locked>> | 86% | 44,744 psi | 86% | 2841 fps | 96.5% |
| ADI AR 2207 | <<locked>> | 86% | 46,702 psi | 90% | 2946 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 44,454 psi | 85% | 2972 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 98% | 45,745 psi | 88% | 3045 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 92% | 46,818 psi | 90% | 2992 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 84% | 45,208 psi | 87% | 2897 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 45,063 psi | 87% | 2864 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 92% | 45,963 psi | 88% | 3002 fps | 98.5% |
| Hodgdon H335 | <<locked>> | 90% | 44,121 psi | 85% | 2963 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 84% | 45,818 psi | 88% | 2881 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,010 psi | 62% | 1857 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 46,122 psi | 89% | 3071 fps | 99.2% |
| IMR 4198 | <<locked>> | 90% | 46,035 psi | 89% | 2930 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 45,382 psi | 87% | 2969 fps | 96.5% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 45,658 psi | 88% | 3022 fps | 96.9% |
| Norma 200 | <<locked>> | 88% | 46,963 psi | 90% | 2972 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 47,021 psi | 90% | 3018 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,937 psi | 61% | 1903 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 45,977 psi | 88% | 2972 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 96% | 45,527 psi | 88% | 2956 fps | 97.3% |
| Shooters World AR Plus | <<locked>> | 86% | 45,382 psi | 87% | 2969 fps | 96.5% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 45,658 psi | 88% | 3022 fps | 96.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 46,180 psi | 89% | 2674 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 44,846 psi | 86% | 2972 fps | 97.3% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 44,817 psi | 86% | 2946 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 44,933 psi | 86% | 2877 fps | 97.2% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,727 psi | 78% | 2812 fps | 97.3% |
| Somchem S335 | <<locked>> | 98% | 46,253 psi | 89% | 2927 fps | 98.4% |
| Vihtavuori N120 | <<locked>> | 86% | 46,775 psi | 90% | 2894 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 45,034 psi | 87% | 2894 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 98% | 46,746 psi | 90% | 2930 fps | 99.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 41,829 psi | 80% | 2933 fps | 99.2% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 44,730 psi | 86% | 2946 fps | 97.7% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 42,989 psi | 83% | 2927 fps | 96.8% |
| Winchester 748 | <<locked>> | 98% | 46,949 psi | 90% | 3048 fps | 96.1% |
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% | 43,207 psi | 83% | 2818 fps | 99.6% |
| Accurate 2015 | <<locked>> | 82% | 29,791 psi | 57% | 2592 fps | 95.7% |
| Accurate 2460 | <<locked>> | 88% | 39,305 psi | 76% | 2838 fps | 95.7% |
| Accurate 2495 | <<locked>> | 88% | 26,876 psi | 52% | 2589 fps | 95% |
| Accurate 2520 | 28.3 gr | 92% | 38,972 psi | 75% | 2874 fps | 95.1% |
| Accurate 4064 | <<locked>> | 98% | 35,389 psi | 68% | 2825 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 36,825 psi | 71% | 2677 fps | 96.5% |
| Accurate LT-32 | <<locked>> | 82% | 39,276 psi | 76% | 2726 fps | 95% |
| ADI AR 2207 | <<locked>> | 80% | 38,450 psi | 74% | 2792 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 33,997 psi | 65% | 2736 fps | 95.3% |
| Alliant AR-Comp | 22.6 gr | 80% | 25,744 psi | 50% | 2546 fps | 96.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,227 psi | 62% | 2674 fps | 97.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,045 psi | 77% | 2795 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,867 psi | 67% | 2651 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 82% | 33,272 psi | 64% | 2717 fps | 95% |
| Hodgdon H335 | <<locked>> | 86% | 38,348 psi | 74% | 2841 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 40,567 psi | 78% | 2776 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,801 psi | 46% | 1667 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 31,517 psi | 61% | 2726 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 34,011 psi | 65% | 2677 fps | 98.9% |
| Lovex D073.4 | <<locked>> | 84% | 42,395 psi | 82% | 2910 fps | 95.8% |
| Lovex D073.6 | <<locked>> | 96% | 39,798 psi | 77% | 2904 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 36,419 psi | 70% | 2762 fps | 99.3% |
| Norma 202 | <<locked>> | 92% | 36,419 psi | 70% | 2799 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,482 psi | 45% | 1703 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 43,062 psi | 83% | 2913 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 90% | 38,348 psi | 74% | 2805 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 84% | 42,395 psi | 82% | 2910 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 96% | 39,798 psi | 77% | 2904 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,756 psi | 80% | 2602 fps | 100% |
| SNPE Vectan SP 10 | 25.6 gr | 82% | 36,912 psi | 71% | 2799 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,938 psi | 63% | 2680 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 37,130 psi | 71% | 2717 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 33,750 psi | 65% | 2654 fps | 95.2% |
| Somchem S335 | <<locked>> | 88% | 33,953 psi | 65% | 2667 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 38,609 psi | 74% | 2749 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,212 psi | 60% | 2589 fps | 97.2% |
| Vihtavuori N133 | <<locked>> | 82% | 28,689 psi | 55% | 2526 fps | 95% |
| Vihtavuori N135 | <<locked>> | 88% | 28,703 psi | 55% | 2618 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 94% | 36,782 psi | 71% | 2779 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 96% | 37,739 psi | 73% | 2815 fps | 95.2% |
| Winchester 748 | <<locked>> | 96% | 43,947 psi | 85% | 2989 fps | 95.3% |
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 42 powders for 6 mm ARC loaded with the .243 | 74gr | Berger M. IMR 3031 delivers the highest muzzle velocity at 3,071 fps; across all powders the maximum-charge window runs from 1,857 fps to 3,071 fps. Accurate 2495 gives the best case fill at 100 %, and 42 of the 42 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (359 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 74.0 gr projectile in 0.243" calls for a 1:12.0 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. Accurate 2520, SNPE Vectan SP 10, Alliant AR-Comp rank at the top here: for 6 mm ARC with the .243 | 74gr | Berger M 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.