Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 85gr | Sierra VarmintKing bullet and 57 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S321, Hodgdon H322 and Shooters World AR Plus.
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>> | 84% | 50,589 psi | 86% | 2710 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 50,778 psi | 86% | 2795 fps | 100% |
| Accurate 2460 | <<locked>> | 96% | 52,968 psi | 90% | 2851 fps | 99% |
| Accurate 2495ᴾ | <<locked>> | 100% | 42,003 psi | 72% | 2723 fps | 99.6% |
| Accurate 2520 | <<locked>> | 98% | 49,835 psi | 85% | 2844 fps | 98.3% |
| Accurate 4064ᴾ | <<locked>> | 100% | 39,059 psi | 66% | 2684 fps | 97.4% |
| Accurate LT-30 | <<locked>> | 90% | 51,169 psi | 87% | 2720 fps | 99.6% |
| Accurate LT-32 | <<locked>> | 90% | 51,576 psi | 88% | 2730 fps | 98.5% |
| ADI AR 2207 | <<locked>> | 88% | 50,879 psi | 87% | 2762 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 52,170 psi | 89% | 2864 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 98% | 50,328 psi | 86% | 2812 fps | 96.7% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 50,140 psi | 85% | 2871 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 50,401 psi | 86% | 2907 fps | 96.2% |
| Alliant Reloder-10x | <<locked>> | 94% | 51,213 psi | 87% | 2818 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 52,678 psi | 90% | 2776 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 52,562 psi | 89% | 2756 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 96% | 50,053 psi | 85% | 2759 fps | 97.2% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 50,894 psi | 87% | 2881 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 94% | 50,923 psi | 87% | 2848 fps | 99.5% |
| Hodgdon H335 | <<locked>> | 94% | 51,779 psi | 88% | 2861 fps | 99.1% |
| Hodgdon H4198 | <<locked>> | 86% | 50,212 psi | 85% | 2723 fps | 99.2% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 50,227 psi | 86% | 2848 fps | 95.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,474 psi | 55% | 1696 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 47,688 psi | 81% | 2858 fps | 99.7% |
| IMR 4198 | <<locked>> | 92% | 50,096 psi | 85% | 2753 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 50,285 psi | 86% | 2684 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 50,328 psi | 86% | 2812 fps | 96.7% |
| Lovex D073.4 | <<locked>> | 88% | 50,531 psi | 86% | 2822 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 94% | 49,530 psi | 84% | 2799 fps | 97.5% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 47,007 psi | 80% | 2812 fps | 97.9% |
| Lovex S053 | <<locked>> | 84% | 51,590 psi | 88% | 2671 fps | 100% |
| Norma 200 | <<locked>> | 90% | 51,880 psi | 88% | 2805 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 48,704 psi | 83% | 2785 fps | 96.4% |
| Norma 202ᴾ | <<locked>> | 100% | 48,776 psi | 83% | 2815 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,518 psi | 55% | 1739 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 49,748 psi | 85% | 2713 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 50,444 psi | 86% | 2815 fps | 98.1% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 52,591 psi | 90% | 2841 fps | 99% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 45,716 psi | 78% | 2726 fps | 95.7% |
| Shooters World AR Plus | <<locked>> | 88% | 50,531 psi | 86% | 2822 fps | 98.2% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 47,007 psi | 80% | 2812 fps | 97.9% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 51,503 psi | 88% | 2782 fps | 96.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 52,620 psi | 90% | 2526 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 52,794 psi | 90% | 2871 fps | 99.1% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 52,591 psi | 90% | 2831 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 52,141 psi | 89% | 2766 fps | 98.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,713 psi | 71% | 2612 fps | 98.2% |
| Somchem S321 | <<locked>> | 96% | 51,126 psi | 87% | 2848 fps | 97.2% |
| Somchem S335ᴾ | <<locked>> | 100% | 50,372 psi | 86% | 2766 fps | 99.4% |
| Vihtavuori N120 | <<locked>> | 88% | 50,952 psi | 87% | 2713 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 52,112 psi | 89% | 2769 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 51,184 psi | 87% | 2766 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 43,062 psi | 73% | 2726 fps | 99.7% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 45,919 psi | 78% | 2740 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 98% | 50,430 psi | 86% | 2805 fps | 96.7% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 44,469 psi | 76% | 2730 fps | 97.8% |
| Winchester 748ᴾ | <<locked>> | 100% | 52,054 psi | 89% | 2900 fps | 97.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 43,976 psi | 75% | 2605 fps | 99.9% |
| Accurate 2015 | <<locked>> | 80% | 29,109 psi | 50% | 2365 fps | 96.3% |
| Accurate 2460 | <<locked>> | 84% | 35,317 psi | 60% | 2533 fps | 95.3% |
| Accurate 2495 | <<locked>> | 86% | 26,295 psi | 45% | 2365 fps | 95.7% |
| Accurate 2520 | <<locked>> | 90% | 37,594 psi | 64% | 2621 fps | 95.5% |
| Accurate 4064 | <<locked>> | 94% | 32,111 psi | 55% | 2530 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 37,739 psi | 64% | 2480 fps | 97.5% |
| Accurate LT-32 | <<locked>> | 80% | 38,116 psi | 65% | 2484 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 39,885 psi | 68% | 2582 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 35,114 psi | 60% | 2546 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 94% | 44,295 psi | 75% | 2707 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 26,600 psi | 45% | 2372 fps | 97.9% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 46,876 psi | 80% | 2844 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,533 psi | 57% | 2490 fps | 98.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 41,191 psi | 70% | 2589 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,795 psi | 61% | 2461 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 90% | 41,800 psi | 71% | 2612 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 94% | 41,046 psi | 70% | 2707 fps | 95.2% |
| Hodgdon H322 | 21.6 gr | 80% | 32,256 psi | 55% | 2477 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 82% | 34,824 psi | 59% | 2539 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 41,626 psi | 71% | 2572 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 98% | 47,398 psi | 81% | 2799 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,018 psi | 41% | 1516 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 30,530 psi | 52% | 2490 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 35,346 psi | 60% | 2484 fps | 99.6% |
| IMR 4227 | <<locked>> | 80% | 47,311 psi | 81% | 2641 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 44,295 psi | 75% | 2707 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 80% | 37,710 psi | 64% | 2585 fps | 95.2% |
| Lovex D073.5 | <<locked>> | 88% | 40,364 psi | 69% | 2635 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 94% | 38,609 psi | 66% | 2657 fps | 95.8% |
| Lovex S053 | <<locked>> | 80% | 46,383 psi | 79% | 2595 fps | 100% |
| Norma 200 | <<locked>> | 80% | 37,724 psi | 64% | 2562 fps | 99.7% |
| Norma 201 | <<locked>> | 96% | 43,250 psi | 74% | 2690 fps | 95.1% |
| Norma 202 | <<locked>> | 90% | 35,346 psi | 60% | 2556 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,772 psi | 40% | 1549 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,905 psi | 80% | 2667 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 39,001 psi | 66% | 2605 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 86% | 35,172 psi | 60% | 2510 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 98% | 43,134 psi | 73% | 2677 fps | 95% |
| Shooters World AR Plus | 23.1 gr | 80% | 37,710 psi | 64% | 2585 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 94% | 38,609 psi | 66% | 2657 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 47,964 psi | 82% | 2726 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 42,496 psi | 72% | 2385 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 35,592 psi | 61% | 2549 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,837 psi | 58% | 2487 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 34,142 psi | 58% | 2434 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 30,995 psi | 53% | 2379 fps | 95% |
| Somchem S321 | 26.7 gr | 92% | 44,469 psi | 76% | 2736 fps | 95.7% |
| Somchem S335 | <<locked>> | 84% | 31,111 psi | 53% | 2388 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 40,001 psi | 68% | 2543 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 32,053 psi | 55% | 2398 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 80% | 27,862 psi | 47% | 2303 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 84% | 26,092 psi | 44% | 2333 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 90% | 33,475 psi | 57% | 2487 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 94% | 44,657 psi | 76% | 2707 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 92% | 34,490 psi | 59% | 2526 fps | 95% |
| Winchester 748 | <<locked>> | 92% | 39,813 psi | 68% | 2677 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 57 powders for 6 x 47 ATZL loaded with the .243 | 85gr | Sierra VarmintKing. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,907 fps; across all powders the maximum-charge window runs from 1,696 fps to 2,907 fps. Accurate 2495 gives the best case fill at 100 %, and 57 of the 57 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 85.0 gr projectile in 0.243" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Alliant AR-Comp 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. Somchem S321, Hodgdon H322, Shooters World AR Plus rank at the top here: for 6 x 47 ATZL with the .243 | 85gr | Sierra VarmintKing 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.