Load Specifications
Load data in caliber 6 x 47 with .243 | 70gr | Sierra MatchKing bullet and 38 powders. The key underlying parameters are shown in the table above.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 88% | 50,256 psi | 86% | 2956 fps | 99.6% |
| Accurate 2015ᴾ | <<locked>> | 100% | 45,440 psi | 77% | 2963 fps | 98.5% |
| Accurate 2460ᴾ | <<locked>> | 100% | 50,705 psi | 86% | 3064 fps | 96.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 33,634 psi | 57% | 2795 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 94% | 50,415 psi | 86% | 2949 fps | 98.1% |
| Accurate LT-32 | <<locked>> | 94% | 50,937 psi | 87% | 2956 fps | 96.2% |
| ADI AR 2205 | <<locked>> | 82% | 52,040 psi | 89% | 2871 fps | 100% |
| ADI AR 2207 | <<locked>> | 94% | 52,315 psi | 89% | 3064 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 50,734 psi | 86% | 3097 fps | 98% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 42,076 psi | 72% | 2989 fps | 99.7% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 52,170 psi | 89% | 3104 fps | 99.8% |
| Alliant Reloder-7 | <<locked>> | 92% | 51,329 psi | 87% | 3022 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 52,141 psi | 89% | 2992 fps | 98.6% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 51,967 psi | 88% | 3117 fps | 98.2% |
| Hodgdon H335 | <<locked>> | 98% | 50,024 psi | 85% | 3077 fps | 96.9% |
| Hodgdon H4198 | <<locked>> | 92% | 52,605 psi | 90% | 3005 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,270 psi | 53% | 1854 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 40,118 psi | 68% | 2953 fps | 96.5% |
| IMR 4198 | <<locked>> | 98% | 51,358 psi | 87% | 3041 fps | 100% |
| IMR 4227 | <<locked>> | 88% | 52,504 psi | 89% | 2986 fps | 100% |
| Lovex D060 | <<locked>> | 82% | 52,692 psi | 90% | 3031 fps | 100% |
| Lovex D073.4 | <<locked>> | 94% | 52,431 psi | 89% | 3100 fps | 96.4% |
| Lovex S053 | <<locked>> | 88% | 51,068 psi | 87% | 2940 fps | 100% |
| Norma 200 | <<locked>> | 96% | 52,649 psi | 90% | 3091 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,125 psi | 53% | 1900 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 52,301 psi | 89% | 3025 fps | 100% |
| ReloadSwiss RS 40ᴾ | <<locked>> | 100% | 52,011 psi | 89% | 3087 fps | 96.1% |
| Shooters World AR Plus | <<locked>> | 94% | 52,431 psi | 89% | 3100 fps | 96.4% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 52,692 psi | 90% | 3031 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 52,040 psi | 89% | 2789 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 51,619 psi | 88% | 3104 fps | 97.1% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 50,589 psi | 86% | 3061 fps | 98.7% |
| Somchem S335ᴾ | <<locked>> | 100% | 43,047 psi | 73% | 2874 fps | 96.2% |
| Vihtavuori N110 | <<locked>> | 84% | 53,127 psi | 90% | 2884 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 52,431 psi | 89% | 3015 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 50,430 psi | 86% | 3002 fps | 99.6% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 43,656 psi | 74% | 2890 fps | 98% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 35,897 psi | 61% | 2818 fps | 96.5% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 38,334 psi | 65% | 2730 fps | 97.9% |
| Accurate 2015 | <<locked>> | 90% | 33,098 psi | 56% | 2697 fps | 95.3% |
| Accurate 2460 | <<locked>> | 96% | 44,251 psi | 75% | 2949 fps | 95.3% |
| Accurate 2495 | <<locked>> | 98% | 31,140 psi | 53% | 2733 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 86% | 39,450 psi | 67% | 2740 fps | 95.6% |
| Accurate LT-32 | <<locked>> | 92% | 48,095 psi | 82% | 2904 fps | 95.6% |
| ADI AR 2205 | <<locked>> | 80% | 49,095 psi | 84% | 2825 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 33,968 psi | 58% | 2720 fps | 99.6% |
| ADI AR 2219 | <<locked>> | 88% | 39,001 psi | 66% | 2861 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 86% | 27,035 psi | 46% | 2589 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 82% | 30,110 psi | 51% | 2635 fps | 95.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,578 psi | 61% | 2710 fps | 97.8% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 37,797 psi | 64% | 2726 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 92% | 40,408 psi | 69% | 2894 fps | 95.6% |
| Hodgdon H335 | <<locked>> | 94% | 43,932 psi | 75% | 2966 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 84% | 41,089 psi | 70% | 2792 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,047 psi | 39% | 1660 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 37,318 psi | 64% | 2884 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 30,414 psi | 52% | 2589 fps | 96.5% |
| IMR 4227 | <<locked>> | 80% | 41,046 psi | 70% | 2785 fps | 99.8% |
| Lovex D060 | <<locked>> | 80% | 49,647 psi | 85% | 2979 fps | 99.9% |
| Lovex D073.4 | <<locked>> | 92% | 48,617 psi | 83% | 3035 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 40,234 psi | 68% | 2753 fps | 100% |
| Norma 200 | <<locked>> | 80% | 31,865 psi | 54% | 2667 fps | 97% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,655 psi | 39% | 1693 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 40,770 psi | 69% | 2818 fps | 99.7% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 48,428 psi | 82% | 3022 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 92% | 48,617 psi | 83% | 3035 fps | 95.5% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 49,647 psi | 85% | 2979 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,681 psi | 64% | 2562 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 44,846 psi | 76% | 2979 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 36,912 psi | 63% | 2789 fps | 95.6% |
| Somchem S335 | <<locked>> | 98% | 40,089 psi | 68% | 2815 fps | 95.4% |
| Vihtavuori N110 | <<locked>> | 80% | 47,485 psi | 81% | 2802 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 34,185 psi | 58% | 2687 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 30,922 psi | 53% | 2595 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 92% | 34,476 psi | 59% | 2690 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 98% | 33,765 psi | 57% | 2766 fps | 95.7% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 38 powders for 6 x 47 loaded with the .243 | 70gr | Sierra MatchKing. Hodgdon H322 delivers the highest muzzle velocity at 3,117 fps; across all powders the maximum-charge window runs from 1,854 fps to 3,117 fps. Accurate 2015 gives the best case fill at 100 %, and 38 of the 38 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 70.0 gr projectile in 0.243" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.