Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 88gr | Warner Tool Co. Flat Line bullet and 49 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, SNPE Vectan SP 10 and Hodgdon H335.
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% | 52,359 psi | 89% | 2625 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 48,211 psi | 82% | 2651 fps | 99.7% |
| Accurate 2460 | <<locked>> | 98% | 50,821 psi | 87% | 2710 fps | 98.2% |
| Accurate 2495ᴾ | <<locked>> | 100% | 36,666 psi | 62% | 2533 fps | 98.6% |
| Accurate 2520ᴾ | <<locked>> | 100% | 47,210 psi | 80% | 2697 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 94% | 52,910 psi | 90% | 2631 fps | 99.4% |
| Accurate LT-32 | <<locked>> | 92% | 50,691 psi | 86% | 2598 fps | 97.8% |
| ADI AR 2207 | <<locked>> | 92% | 51,895 psi | 88% | 2671 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 50,676 psi | 86% | 2733 fps | 99.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 44,759 psi | 76% | 2680 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 98% | 52,518 psi | 89% | 2730 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 51,082 psi | 87% | 2644 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 50,894 psi | 87% | 2625 fps | 99.4% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 51,474 psi | 88% | 2667 fps | 96.8% |
| Hodgdon H322 | <<locked>> | 98% | 52,054 psi | 89% | 2753 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 96% | 49,792 psi | 85% | 2720 fps | 98.3% |
| Hodgdon H4198 | <<locked>> | 90% | 51,953 psi | 88% | 2635 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,749 psi | 54% | 1598 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 42,612 psi | 73% | 2661 fps | 98.7% |
| IMR 4198 | <<locked>> | 96% | 51,430 psi | 88% | 2664 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 52,083 psi | 89% | 2602 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 51,488 psi | 88% | 2723 fps | 97.8% |
| Lovex D073.5 | <<locked>> | 98% | 50,807 psi | 86% | 2707 fps | 97% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 41,278 psi | 70% | 2608 fps | 95.9% |
| Lovex S053 | <<locked>> | 86% | 50,444 psi | 86% | 2552 fps | 100% |
| Norma 200 | <<locked>> | 94% | 52,982 psi | 90% | 2717 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 43,323 psi | 74% | 2615 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,836 psi | 54% | 1640 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 51,895 psi | 88% | 2638 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 51,866 psi | 88% | 2726 fps | 97.7% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 47,732 psi | 81% | 2654 fps | 97.8% |
| Shooters World AR Plus | <<locked>> | 92% | 51,488 psi | 88% | 2723 fps | 97.8% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 41,278 psi | 70% | 2608 fps | 95.9% |
| Shooters World Tactical Rifle | <<locked>> | 96% | 53,026 psi | 90% | 2687 fps | 95.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 51,895 psi | 88% | 2418 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 51,039 psi | 87% | 2733 fps | 98.4% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 50,604 psi | 86% | 2694 fps | 99.6% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 47,471 psi | 81% | 2585 fps | 97.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 37,985 psi | 65% | 2434 fps | 96.7% |
| Somchem S321ᴾ | <<locked>> | 100% | 52,417 psi | 89% | 2756 fps | 96.7% |
| Somchem S335ᴾ | <<locked>> | 100% | 45,730 psi | 78% | 2585 fps | 98.3% |
| Vihtavuori N110 | <<locked>> | 82% | 52,881 psi | 90% | 2497 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 52,011 psi | 89% | 2625 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 50,067 psi | 85% | 2631 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 46,427 psi | 79% | 2589 fps | 99.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 38,450 psi | 65% | 2543 fps | 98.7% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 41,046 psi | 70% | 2546 fps | 96.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 39,726 psi | 68% | 2536 fps | 95.9% |
| Winchester 748ᴾ | <<locked>> | 100% | 46,528 psi | 79% | 2694 fps | 96% |
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% | 40,248 psi | 69% | 2438 fps | 99.4% |
| Accurate 2015 | <<locked>> | 82% | 27,456 psi | 47% | 2238 fps | 95.1% |
| Accurate 2460 | <<locked>> | 90% | 38,696 psi | 66% | 2507 fps | 95.7% |
| Accurate 2495 | <<locked>> | 90% | 25,962 psi | 44% | 2283 fps | 95% |
| Accurate 2520 | <<locked>> | 94% | 38,261 psi | 65% | 2539 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 34,693 psi | 59% | 2313 fps | 96% |
| Accurate LT-32 | <<locked>> | 84% | 39,537 psi | 67% | 2408 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 36,274 psi | 62% | 2425 fps | 100% |
| ADI AR 2219 | 20.1 gr | 82% | 33,837 psi | 58% | 2415 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 24,076 psi | 41% | 2198 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 29,965 psi | 51% | 2313 fps | 97.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 37,608 psi | 64% | 2421 fps | 99.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 32,924 psi | 56% | 2303 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 96% | 45,876 psi | 78% | 2579 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 84% | 32,953 psi | 56% | 2395 fps | 95% |
| Hodgdon H335 | 22.4 gr | 88% | 38,305 psi | 65% | 2516 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 38,305 psi | 65% | 2398 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,380 psi | 40% | 1427 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 31,372 psi | 53% | 2411 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 32,547 psi | 55% | 2323 fps | 98.8% |
| IMR 4227 | <<locked>> | 80% | 43,555 psi | 74% | 2474 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 41,800 psi | 71% | 2566 fps | 95.7% |
| Lovex D073.5 | <<locked>> | 94% | 44,309 psi | 75% | 2605 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 98% | 38,493 psi | 66% | 2556 fps | 95.1% |
| Lovex S053 | <<locked>> | 80% | 42,960 psi | 73% | 2441 fps | 100% |
| Norma 200 | <<locked>> | 80% | 34,098 psi | 58% | 2395 fps | 99% |
| Norma 202 | <<locked>> | 94% | 35,940 psi | 61% | 2474 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,119 psi | 39% | 1460 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 43,033 psi | 73% | 2507 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 42,540 psi | 72% | 2572 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 92% | 37,753 psi | 64% | 2470 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 86% | 41,800 psi | 71% | 2566 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 98% | 38,493 psi | 66% | 2556 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 49,458 psi | 84% | 2635 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,653 psi | 68% | 2251 fps | 100% |
| SNPE Vectan SP 10 | 21.3 gr | 84% | 36,347 psi | 62% | 2470 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 30,908 psi | 53% | 2316 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 37,159 psi | 63% | 2402 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 33,678 psi | 57% | 2346 fps | 95.3% |
| Somchem S321 | <<locked>> | 96% | 45,905 psi | 78% | 2654 fps | 95.3% |
| Somchem S335 | <<locked>> | 90% | 33,489 psi | 57% | 2352 fps | 95.2% |
| Vihtavuori N110 | <<locked>> | 80% | 49,980 psi | 85% | 2461 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 36,477 psi | 62% | 2388 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 29,269 psi | 50% | 2241 fps | 96.8% |
| Vihtavuori N133 | <<locked>> | 84% | 28,747 psi | 49% | 2234 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 90% | 28,123 psi | 48% | 2303 fps | 95.5% |
| Vihtavuori N140 | <<locked>> | 96% | 36,492 psi | 62% | 2457 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 98% | 37,202 psi | 63% | 2487 fps | 95.1% |
| Winchester 748 | <<locked>> | 98% | 43,584 psi | 74% | 2641 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 49 powders for 6 x 47 ATZL loaded with the .243 | 88gr | Warner Tool Co. Flat Line. Somchem S321 delivers the highest muzzle velocity at 2,756 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,756 fps. Accurate 2015 gives the best case fill at 100 %, and 49 of the 49 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 88.0 gr projectile in 0.243" calls for a 1:7.5 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. ADI AR 2219, SNPE Vectan SP 10, Hodgdon H335 rank at the top here: for 6 x 47 ATZL with the .243 | 88gr | Warner Tool Co. Flat Line 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.