Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 85gr | Barnes X BT bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H322, SNPE Vectan SP 10 and ADI AR 2219.
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% | 51,459 psi | 88% | 2680 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 52,011 psi | 89% | 2766 fps | 99.9% |
| Accurate 2460 | <<locked>> | 94% | 51,068 psi | 87% | 2776 fps | 98.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 44,628 psi | 76% | 2717 fps | 99.7% |
| Accurate 2520 | <<locked>> | 98% | 50,894 psi | 87% | 2815 fps | 98.1% |
| Accurate 4064ᴾ | <<locked>> | 100% | 41,408 psi | 70% | 2680 fps | 97.4% |
| Accurate LT-30 | <<locked>> | 90% | 51,735 psi | 88% | 2684 fps | 99.4% |
| Accurate LT-32 | <<locked>> | 90% | 52,199 psi | 89% | 2694 fps | 98.2% |
| ADI AR 2207 | <<locked>> | 88% | 52,257 psi | 89% | 2740 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 49,661 psi | 85% | 2782 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 98% | 50,720 psi | 86% | 2772 fps | 96.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 50,908 psi | 87% | 2841 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 51,068 psi | 87% | 2871 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 94% | 52,489 psi | 89% | 2792 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 50,705 psi | 86% | 2700 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 50,038 psi | 85% | 2677 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 96% | 50,836 psi | 87% | 2726 fps | 96.9% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 51,213 psi | 87% | 2844 fps | 97.1% |
| Hodgdon H322 | <<locked>> | 94% | 51,459 psi | 88% | 2812 fps | 99.4% |
| Hodgdon H335 | <<locked>> | 94% | 52,808 psi | 90% | 2835 fps | 98.9% |
| Hodgdon H4198 | <<locked>> | 86% | 50,560 psi | 86% | 2684 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,272 psi | 57% | 1677 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 48,617 psi | 83% | 2831 fps | 99.6% |
| IMR 4198 | <<locked>> | 92% | 50,372 psi | 86% | 2717 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 50,734 psi | 86% | 2651 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 50,720 psi | 86% | 2772 fps | 96.2% |
| Lovex D073.4 | <<locked>> | 88% | 51,706 psi | 88% | 2792 fps | 98% |
| Lovex D073.5 | <<locked>> | 94% | 51,343 psi | 87% | 2779 fps | 97.3% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 48,138 psi | 82% | 2785 fps | 97.6% |
| Lovex S053 | <<locked>> | 84% | 52,910 psi | 90% | 2648 fps | 100% |
| Norma 200 | <<locked>> | 88% | 50,821 psi | 87% | 2740 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 50,198 psi | 85% | 2762 fps | 96.2% |
| Norma 202ᴾ | <<locked>> | 100% | 49,327 psi | 84% | 2779 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,982 psi | 56% | 1709 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 50,705 psi | 86% | 2687 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 51,329 psi | 87% | 2785 fps | 97.8% |
| Rottweil R 901 | <<locked>> | 98% | 52,156 psi | 89% | 2779 fps | 98.6% |
| Shooters World AR Plus | <<locked>> | 88% | 51,706 psi | 88% | 2792 fps | 98% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 48,138 psi | 82% | 2785 fps | 97.6% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 51,924 psi | 88% | 2743 fps | 95.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 51,155 psi | 87% | 2470 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 50,705 psi | 86% | 2795 fps | 98.5% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 50,154 psi | 85% | 2753 fps | 99.6% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 52,910 psi | 90% | 2733 fps | 98.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 42,656 psi | 73% | 2582 fps | 98% |
| Somchem S321 | <<locked>> | 96% | 51,953 psi | 88% | 2818 fps | 96.9% |
| Somchem S335ᴾ | <<locked>> | 100% | 51,764 psi | 88% | 2740 fps | 99.2% |
| Vihtavuori N120 | <<locked>> | 88% | 52,127 psi | 89% | 2687 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 50,270 psi | 86% | 2700 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 51,837 psi | 88% | 2733 fps | 99.9% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 44,193 psi | 75% | 2703 fps | 99.6% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 46,992 psi | 80% | 2713 fps | 98.3% |
| Vihtavuori N530 | <<locked>> | 98% | 51,445 psi | 88% | 2776 fps | 96.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 45,339 psi | 77% | 2700 fps | 97.5% |
| Winchester 748ᴾ | <<locked>> | 100% | 52,214 psi | 89% | 2858 fps | 97.5% |
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% | 45,397 psi | 77% | 2582 fps | 99.9% |
| Accurate 2015 | <<locked>> | 80% | 31,067 psi | 53% | 2362 fps | 96.6% |
| Accurate 2460 | <<locked>> | 84% | 37,376 psi | 64% | 2526 fps | 95.4% |
| Accurate 2495 | <<locked>> | 84% | 27,659 psi | 47% | 2349 fps | 95.8% |
| Accurate 2520 | <<locked>> | 90% | 39,088 psi | 67% | 2608 fps | 95.5% |
| Accurate 4064 | <<locked>> | 94% | 34,809 psi | 59% | 2539 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 38,754 psi | 66% | 2454 fps | 97.4% |
| Accurate LT-32 | <<locked>> | 80% | 39,131 psi | 67% | 2457 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 41,060 psi | 70% | 2559 fps | 100% |
| ADI AR 2219 | 21.3 gr | 80% | 36,593 psi | 62% | 2530 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 96% | 47,805 psi | 81% | 2723 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 28,297 psi | 48% | 2369 fps | 98.1% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 48,196 psi | 82% | 2818 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,128 psi | 60% | 2474 fps | 98.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 42,685 psi | 73% | 2566 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 37,275 psi | 63% | 2448 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 90% | 43,091 psi | 73% | 2589 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 94% | 42,554 psi | 72% | 2690 fps | 95% |
| Hodgdon H322 | 20.6 gr | 80% | 33,707 psi | 57% | 2461 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 82% | 36,201 psi | 62% | 2526 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 42,453 psi | 72% | 2543 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,526 psi | 42% | 1490 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 30,516 psi | 52% | 2438 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 36,506 psi | 62% | 2467 fps | 99.5% |
| IMR 4227 | <<locked>> | 80% | 47,718 psi | 81% | 2605 fps | 100% |
| IMR 8208 XBR | <<locked>> | 96% | 47,805 psi | 81% | 2723 fps | 95.6% |
| Lovex D073.4 | <<locked>> | 80% | 39,827 psi | 68% | 2579 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 88% | 42,105 psi | 72% | 2621 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 94% | 39,668 psi | 68% | 2631 fps | 95.6% |
| Lovex S053 | <<locked>> | 80% | 47,601 psi | 81% | 2569 fps | 100% |
| Norma 200 | <<locked>> | 80% | 39,914 psi | 68% | 2552 fps | 99.8% |
| Norma 201 | <<locked>> | 98% | 47,514 psi | 81% | 2717 fps | 95.6% |
| Norma 202 | <<locked>> | 90% | 36,869 psi | 63% | 2543 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,845 psi | 42% | 1535 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 47,790 psi | 81% | 2641 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 40,292 psi | 69% | 2585 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 86% | 37,376 psi | 64% | 2503 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 39,827 psi | 68% | 2579 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 94% | 39,668 psi | 68% | 2631 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 48,849 psi | 83% | 2694 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 43,888 psi | 75% | 2365 fps | 100% |
| SNPE Vectan SP 10 | 22 gr | 80% | 36,912 psi | 63% | 2533 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,418 psi | 60% | 2474 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 37,521 psi | 64% | 2461 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 32,314 psi | 55% | 2365 fps | 95% |
| Somchem S321 | <<locked>> | 92% | 45,803 psi | 78% | 2713 fps | 95.5% |
| Somchem S335 | <<locked>> | 84% | 33,069 psi | 56% | 2385 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 41,075 psi | 70% | 2520 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 33,939 psi | 58% | 2395 fps | 98.3% |
| Vihtavuori N133 | <<locked>> | 80% | 29,617 psi | 50% | 2300 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 84% | 27,963 psi | 48% | 2336 fps | 95.5% |
| Vihtavuori N140 | <<locked>> | 90% | 34,925 psi | 59% | 2477 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 94% | 45,629 psi | 78% | 2677 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 94% | 37,840 psi | 64% | 2556 fps | 95.6% |
| Winchester 748 | <<locked>> | 94% | 43,439 psi | 74% | 2703 fps | 95.5% |
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 55 powders for 6 x 47 ATZL loaded with the .243 | 85gr | Barnes X BT. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,871 fps; across all powders the maximum-charge window runs from 1,677 fps to 2,871 fps. Accurate 2495 gives the best case fill at 100 %, and 55 of the 55 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 85.0 gr projectile in 0.243" calls for a 1:9.5 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. Hodgdon H322, SNPE Vectan SP 10, ADI AR 2219 rank at the top here: for 6 x 47 ATZL with the .243 | 85gr | Barnes X BT 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.