Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 85gr | Barnes TSX BT bullet and 52 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H335, Hodgdon H322 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>> | 86% | 50,183 psi | 85% | 2680 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 49,429 psi | 84% | 2756 fps | 99.9% |
| Accurate 2460 | <<locked>> | 98% | 51,343 psi | 87% | 2805 fps | 98.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 36,767 psi | 63% | 2612 fps | 98.7% |
| Accurate 2520ᴾ | <<locked>> | 100% | 48,341 psi | 82% | 2799 fps | 97.7% |
| Accurate LT-30 | <<locked>> | 92% | 50,850 psi | 87% | 2690 fps | 99.3% |
| Accurate LT-32 | <<locked>> | 92% | 51,358 psi | 87% | 2697 fps | 98.1% |
| ADI AR 2207 | <<locked>> | 92% | 52,997 psi | 90% | 2772 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 51,372 psi | 87% | 2828 fps | 99.4% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 49,066 psi | 84% | 2766 fps | 95.9% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 45,963 psi | 78% | 2785 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 98% | 52,489 psi | 89% | 2913 fps | 96.1% |
| Alliant Reloder-10x | <<locked>> | 96% | 50,241 psi | 86% | 2785 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 51,793 psi | 88% | 2743 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 52,359 psi | 89% | 2730 fps | 99.6% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 52,460 psi | 89% | 2772 fps | 97.2% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 46,151 psi | 79% | 2779 fps | 96% |
| Hodgdon H322 | <<locked>> | 96% | 49,400 psi | 84% | 2799 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 96% | 50,589 psi | 86% | 2818 fps | 98.6% |
| Hodgdon H4198 | <<locked>> | 90% | 52,837 psi | 90% | 2736 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,734 psi | 54% | 1663 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 43,178 psi | 74% | 2756 fps | 98.9% |
| IMR 4198 | <<locked>> | 96% | 51,866 psi | 88% | 2759 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 49,835 psi | 85% | 2657 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 49,066 psi | 84% | 2766 fps | 95.9% |
| Lovex D073.4 | <<locked>> | 92% | 52,692 psi | 90% | 2831 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 98% | 51,880 psi | 88% | 2812 fps | 97.5% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 42,438 psi | 72% | 2713 fps | 96.4% |
| Lovex S053 | <<locked>> | 86% | 51,561 psi | 88% | 2651 fps | 100% |
| Norma 200 | <<locked>> | 92% | 49,908 psi | 85% | 2759 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 44,309 psi | 75% | 2717 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,691 psi | 54% | 1706 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 52,460 psi | 89% | 2733 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 52,910 psi | 90% | 2828 fps | 98.1% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 48,008 psi | 82% | 2746 fps | 98% |
| Shooters World AR Plus | <<locked>> | 92% | 52,692 psi | 90% | 2831 fps | 98.1% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 42,438 psi | 72% | 2713 fps | 96.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 52,011 psi | 89% | 2503 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 52,069 psi | 89% | 2835 fps | 98.7% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 51,271 psi | 87% | 2792 fps | 99.7% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 48,153 psi | 82% | 2680 fps | 98% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 38,377 psi | 65% | 2526 fps | 97% |
| Somchem S321 | <<locked>> | 98% | 50,053 psi | 85% | 2805 fps | 96.5% |
| Somchem S335ᴾ | <<locked>> | 100% | 46,050 psi | 78% | 2674 fps | 98.5% |
| Vihtavuori N120 | <<locked>> | 92% | 53,098 psi | 90% | 2723 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 50,995 psi | 87% | 2733 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 47,195 psi | 80% | 2687 fps | 99.6% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 38,986 psi | 66% | 2635 fps | 99% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 41,843 psi | 71% | 2644 fps | 97.3% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 49,864 psi | 85% | 2769 fps | 96.1% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 40,147 psi | 68% | 2628 fps | 96.3% |
| Winchester 748ᴾ | <<locked>> | 100% | 47,529 psi | 81% | 2799 fps | 96.5% |
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% | 41,046 psi | 70% | 2533 fps | 99.6% |
| Accurate 2015 | <<locked>> | 82% | 27,688 psi | 47% | 2320 fps | 95.3% |
| Accurate 2460 | <<locked>> | 88% | 36,593 psi | 62% | 2546 fps | 95.2% |
| Accurate 2495 | <<locked>> | 90% | 25,846 psi | 44% | 2352 fps | 95.1% |
| Accurate 2520 | <<locked>> | 94% | 39,001 psi | 66% | 2635 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 34,867 psi | 59% | 2398 fps | 96.3% |
| Accurate LT-32 | <<locked>> | 84% | 40,030 psi | 68% | 2500 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 36,651 psi | 62% | 2510 fps | 100% |
| ADI AR 2219 | 21.1 gr | 80% | 32,300 psi | 55% | 2457 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 98% | 46,108 psi | 78% | 2717 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 23,917 psi | 41% | 2270 fps | 96% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 49,153 psi | 84% | 2861 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 30,110 psi | 51% | 2395 fps | 97.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 37,695 psi | 64% | 2503 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 32,967 psi | 56% | 2379 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 94% | 43,743 psi | 74% | 2625 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 98% | 42,757 psi | 73% | 2720 fps | 95.1% |
| Hodgdon H322 | 21.4 gr | 84% | 33,547 psi | 57% | 2490 fps | 95.5% |
| Hodgdon H335 | 23.4 gr | 86% | 36,027 psi | 61% | 2549 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 38,537 psi | 66% | 2487 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,337 psi | 40% | 1486 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 31,633 psi | 54% | 2503 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 32,590 psi | 55% | 2405 fps | 98.9% |
| IMR 4227 | <<locked>> | 80% | 44,295 psi | 75% | 2572 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 46,108 psi | 78% | 2717 fps | 95.2% |
| Lovex D073.4 | <<locked>> | 84% | 39,842 psi | 68% | 2612 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 92% | 42,076 psi | 72% | 2651 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 98% | 39,102 psi | 67% | 2651 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 43,134 psi | 73% | 2526 fps | 100% |
| Norma 200 | <<locked>> | 80% | 34,374 psi | 59% | 2480 fps | 99.1% |
| Norma 202 | <<locked>> | 94% | 36,506 psi | 62% | 2566 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,003 psi | 39% | 1519 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 43,366 psi | 74% | 2595 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 40,611 psi | 69% | 2618 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 92% | 37,855 psi | 64% | 2556 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 84% | 39,842 psi | 68% | 2612 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 98% | 39,102 psi | 67% | 2651 fps | 95.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,740 psi | 68% | 2329 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 37,115 psi | 63% | 2569 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 31,111 psi | 53% | 2402 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 37,594 psi | 64% | 2493 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 33,779 psi | 58% | 2428 fps | 95.6% |
| Somchem S321 | <<locked>> | 96% | 46,412 psi | 79% | 2746 fps | 95.7% |
| Somchem S335 | <<locked>> | 90% | 33,707 psi | 57% | 2434 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 36,869 psi | 63% | 2474 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 29,356 psi | 50% | 2320 fps | 96.9% |
| Vihtavuori N133 | <<locked>> | 84% | 28,993 psi | 49% | 2320 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 90% | 28,456 psi | 48% | 2388 fps | 95.8% |
| Vihtavuori N140 | <<locked>> | 94% | 34,650 psi | 59% | 2497 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 98% | 46,659 psi | 79% | 2717 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 98% | 37,710 psi | 64% | 2579 fps | 95.6% |
| Winchester 748 | <<locked>> | 98% | 44,657 psi | 76% | 2746 fps | 95.8% |
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 52 powders for 6 x 47 ATZL loaded with the .243 | 85gr | Barnes TSX BT. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,913 fps; across all powders the maximum-charge window runs from 1,663 fps to 2,913 fps. Accurate 2015 gives the best case fill at 100 %, and 52 of the 52 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 54–90 %, 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 2015, Accurate 2495, Accurate 2520 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 H335, Hodgdon H322, ADI AR 2219 rank at the top here: for 6 x 47 ATZL with the .243 | 85gr | Barnes TSX 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.