Load Specifications
Load data in caliber 6 mm ARC with .243 | 65gr | Impala LWHV LS bullet and 27 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-10x, SNPE Vectan SP 3 and ADI AR 2207.
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>> | 84% | 46,847 psi | 90% | 3022 fps | 99.2% |
| Accurate 2015 | <<locked>> | 98% | 46,470 psi | 89% | 3100 fps | 98.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 38,595 psi | 74% | 3015 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 88% | 44,889 psi | 86% | 2972 fps | 96.8% |
| ADI AR 2207 | <<locked>> | 88% | 45,992 psi | 88% | 3097 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 46,775 psi | 90% | 3159 fps | 97.1% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 44,367 psi | 85% | 3169 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 94% | 46,151 psi | 89% | 3133 fps | 99.3% |
| Alliant Reloder-7 | <<locked>> | 86% | 44,918 psi | 86% | 3038 fps | 99.4% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 44,686 psi | 86% | 2992 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 98% | 46,775 psi | 90% | 3159 fps | 97.1% |
| Hodgdon H4198 | <<locked>> | 88% | 45,455 psi | 87% | 3012 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,836 psi | 61% | 1962 fps | 100% |
| IMR 4198 | <<locked>> | 92% | 44,947 psi | 86% | 3064 fps | 99.6% |
| IMR 4227 | <<locked>> | 82% | 45,643 psi | 88% | 3009 fps | 100% |
| Lovex S053 | <<locked>> | 82% | 45,049 psi | 87% | 2972 fps | 100% |
| Norma 200 | <<locked>> | 90% | 46,702 psi | 90% | 3120 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,807 psi | 61% | 2008 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 45,614 psi | 88% | 3045 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 45,948 psi | 88% | 2828 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 47,065 psi | 90% | 3156 fps | 96% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 44,962 psi | 86% | 3087 fps | 97.6% |
| Somchem S335ᴾ | <<locked>> | 100% | 45,498 psi | 87% | 3048 fps | 96.6% |
| Vihtavuori N120 | <<locked>> | 90% | 45,107 psi | 87% | 3028 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 45,963 psi | 88% | 3058 fps | 99.1% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 42,322 psi | 81% | 2995 fps | 97.6% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 39,508 psi | 76% | 3015 fps | 97.3% |
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% | 41,321 psi | 79% | 2910 fps | 98.4% |
| Accurate 2015 | <<locked>> | 86% | 32,996 psi | 63% | 2795 fps | 95% |
| Accurate 2495 | <<locked>> | 94% | 32,068 psi | 62% | 2851 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 84% | 40,030 psi | 77% | 2871 fps | 95.5% |
| ADI AR 2207 | 21.3 gr | 80% | 35,926 psi | 69% | 2887 fps | 99.7% |
| ADI AR 2219 | <<locked>> | 88% | 41,104 psi | 79% | 3035 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 84% | 27,659 psi | 53% | 2717 fps | 95.1% |
| Alliant Reloder-10x | 21.5 gr | 80% | 30,298 psi | 58% | 2749 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 37,797 psi | 73% | 2884 fps | 98.2% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 37,246 psi | 72% | 2831 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 92% | 39,305 psi | 75% | 2992 fps | 95% |
| Hodgdon H4198 | <<locked>> | 86% | 42,598 psi | 82% | 2949 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,670 psi | 45% | 1759 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 32,387 psi | 62% | 2762 fps | 97% |
| IMR 4227 | <<locked>> | 80% | 43,134 psi | 83% | 2956 fps | 99.9% |
| Lovex S053 | <<locked>> | 80% | 42,569 psi | 82% | 2927 fps | 100% |
| Norma 200 | <<locked>> | 80% | 34,548 psi | 66% | 2851 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,380 psi | 45% | 1795 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 42,699 psi | 82% | 2989 fps | 99.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,349 psi | 76% | 2713 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 44,150 psi | 85% | 3097 fps | 95.2% |
| SNPE Vectan SP 3 | 23.2 gr | 86% | 37,869 psi | 73% | 2927 fps | 95.6% |
| Somchem S335 | <<locked>> | 96% | 40,509 psi | 78% | 2946 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 33,750 psi | 65% | 2792 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 82% | 30,777 psi | 59% | 2703 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 92% | 33,794 psi | 65% | 2792 fps | 95% |
| Vihtavuori N135 | <<locked>> | 94% | 33,315 psi | 64% | 2858 fps | 95.2% |
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 27 powders for 6 mm ARC loaded with the .243 | 65gr | Impala LWHV LS. Alliant AR-Comp delivers the highest muzzle velocity at 3,169 fps; across all powders the maximum-charge window runs from 1,962 fps to 3,169 fps. Accurate 2495 gives the best case fill at 100 %, and 27 of the 27 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 65.0 gr projectile in 0.243" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Alliant AR-Comp, 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. Alliant Reloder-10x, SNPE Vectan SP 3, ADI AR 2207 rank at the top here: for 6 mm ARC with the .243 | 65gr | Impala LWHV LS 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.