Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 74gr | Berger M bullet and 42 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Hodgdon H335 and Hodgdon H322.
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% | 49,806 psi | 85% | 2890 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 49,588 psi | 84% | 2976 fps | 99.5% |
| Accurate 2460 | <<locked>> | 98% | 51,895 psi | 88% | 3028 fps | 97.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 37,550 psi | 64% | 2825 fps | 98.1% |
| Accurate 2520ᴾ | <<locked>> | 100% | 48,356 psi | 82% | 3009 fps | 96.8% |
| Accurate LT-30 | <<locked>> | 92% | 50,546 psi | 86% | 2900 fps | 98.8% |
| Accurate LT-32 | <<locked>> | 92% | 51,039 psi | 87% | 2907 fps | 97.2% |
| ADI AR 2207 | <<locked>> | 92% | 53,069 psi | 90% | 3005 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 51,692 psi | 88% | 3054 fps | 98.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 45,818 psi | 78% | 3005 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 50,430 psi | 86% | 3012 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 51,895 psi | 88% | 2966 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 52,127 psi | 89% | 2940 fps | 99.2% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 52,707 psi | 90% | 2989 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 98% | 52,968 psi | 90% | 3077 fps | 99% |
| Hodgdon H335 | <<locked>> | 96% | 50,879 psi | 87% | 3041 fps | 97.9% |
| Hodgdon H4198 | <<locked>> | 90% | 52,765 psi | 90% | 2956 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,981 psi | 54% | 1827 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 43,656 psi | 74% | 2976 fps | 98.3% |
| IMR 4198 | <<locked>> | 96% | 51,779 psi | 88% | 2986 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 52,924 psi | 90% | 2930 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 52,953 psi | 90% | 3051 fps | 97.4% |
| Lovex D073.5 | <<locked>> | 98% | 52,025 psi | 89% | 3025 fps | 96.6% |
| Lovex S053 | <<locked>> | 86% | 51,053 psi | 87% | 2871 fps | 100% |
| Norma 200 | <<locked>> | 92% | 50,444 psi | 86% | 2989 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 44,092 psi | 75% | 2920 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,415 psi | 53% | 1860 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 52,199 psi | 89% | 2956 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 52,895 psi | 90% | 3048 fps | 97.2% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 48,631 psi | 83% | 2966 fps | 97.3% |
| Shooters World AR Plus | <<locked>> | 92% | 52,953 psi | 90% | 3051 fps | 97.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 51,924 psi | 88% | 2720 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 52,011 psi | 89% | 3054 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 51,213 psi | 87% | 3012 fps | 99.3% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 48,356 psi | 82% | 2894 fps | 97.3% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 38,711 psi | 66% | 2723 fps | 96.1% |
| Somchem S335ᴾ | <<locked>> | 100% | 46,543 psi | 79% | 2890 fps | 97.9% |
| Vihtavuori N120 | <<locked>> | 92% | 53,156 psi | 90% | 2953 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 51,401 psi | 88% | 2956 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 47,326 psi | 81% | 2900 fps | 99.2% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 39,291 psi | 67% | 2841 fps | 98.3% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 42,090 psi | 72% | 2851 fps | 96.4% |
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% | 41,089 psi | 70% | 2736 fps | 99.1% |
| Accurate 2015 | <<locked>> | 84% | 29,805 psi | 51% | 2556 fps | 95% |
| Accurate 2460 | <<locked>> | 90% | 39,552 psi | 67% | 2802 fps | 95% |
| Accurate 2495 | <<locked>> | 92% | 28,572 psi | 49% | 2602 fps | 95.1% |
| Accurate 2520 | <<locked>> | 96% | 41,800 psi | 71% | 2890 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 35,114 psi | 60% | 2592 fps | 95.2% |
| Accurate LT-32 | <<locked>> | 86% | 42,598 psi | 73% | 2753 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 36,680 psi | 62% | 2717 fps | 100% |
| ADI AR 2219 | 24.1 gr | 84% | 36,854 psi | 63% | 2762 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 82% | 25,802 psi | 44% | 2503 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 30,647 psi | 52% | 2595 fps | 96.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 38,043 psi | 65% | 2710 fps | 99% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 35,418 psi | 60% | 2621 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 98% | 49,342 psi | 84% | 2930 fps | 95.6% |
| Hodgdon H322 | 23.9 gr | 86% | 36,027 psi | 61% | 2743 fps | 95.2% |
| Hodgdon H335 | 26.7 gr | 90% | 41,466 psi | 71% | 2864 fps | 95.8% |
| Hodgdon H4198 | <<locked>> | 80% | 38,725 psi | 66% | 2690 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,424 psi | 40% | 1631 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 33,765 psi | 57% | 2746 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 32,489 psi | 55% | 2595 fps | 98.1% |
| IMR 4227 | <<locked>> | 80% | 43,772 psi | 75% | 2779 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 42,656 psi | 73% | 2871 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 94% | 45,063 psi | 77% | 2907 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 42,888 psi | 73% | 2740 fps | 100% |
| Norma 200 | <<locked>> | 80% | 34,403 psi | 59% | 2677 fps | 98.5% |
| Norma 202 | <<locked>> | 96% | 38,812 psi | 66% | 2812 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,076 psi | 39% | 1663 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 43,468 psi | 74% | 2812 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 43,526 psi | 74% | 2877 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 94% | 40,553 psi | 69% | 2808 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 86% | 42,656 psi | 73% | 2871 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,769 psi | 68% | 2536 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 39,639 psi | 67% | 2818 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 33,011 psi | 56% | 2638 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 40,074 psi | 68% | 2736 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 36,521 psi | 62% | 2674 fps | 95.3% |
| Somchem S335 | <<locked>> | 92% | 36,361 psi | 62% | 2684 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 36,869 psi | 63% | 2680 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 29,501 psi | 50% | 2503 fps | 95.9% |
| Vihtavuori N133 | <<locked>> | 86% | 30,850 psi | 53% | 2549 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 92% | 30,632 psi | 52% | 2631 fps | 95.5% |
| Vihtavuori N140 | <<locked>> | 98% | 39,305 psi | 67% | 2792 fps | 95.6% |
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 42 powders for 6 x 47 ATZL loaded with the .243 | 74gr | Berger M. Hodgdon H322 delivers the highest muzzle velocity at 3,077 fps; across all powders the maximum-charge window runs from 1,827 fps to 3,077 fps. Accurate 2015 gives the best case fill at 100 %, and 42 of the 42 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 74.0 gr projectile in 0.243" calls for a 1:12.0 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, Hodgdon H335, Hodgdon H322 rank at the top here: for 6 x 47 ATZL with the .243 | 74gr | Berger M 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.