Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 71gr | Berger BT M bullet and 40 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Norma 200 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>> | 88% | 50,067 psi | 85% | 2930 fps | 99.7% |
| Accurate 2015ᴾ | <<locked>> | 100% | 45,934 psi | 78% | 2949 fps | 98.7% |
| Accurate 2460ᴾ | <<locked>> | 100% | 51,271 psi | 87% | 3051 fps | 97% |
| Accurate 2495ᴾ | <<locked>> | 100% | 33,649 psi | 57% | 2776 fps | 96.3% |
| Accurate LT-30 | <<locked>> | 94% | 50,821 psi | 87% | 2936 fps | 98.2% |
| Accurate LT-32 | <<locked>> | 94% | 51,343 psi | 87% | 2943 fps | 96.4% |
| ADI AR 2205 | <<locked>> | 82% | 52,286 psi | 89% | 2851 fps | 100% |
| ADI AR 2207 | <<locked>> | 94% | 52,779 psi | 90% | 3048 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 51,256 psi | 87% | 3084 fps | 98.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 42,482 psi | 72% | 2979 fps | 99.8% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 52,678 psi | 90% | 3087 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 92% | 51,779 psi | 88% | 3005 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 52,069 psi | 89% | 2972 fps | 98.7% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 52,504 psi | 89% | 3104 fps | 98.4% |
| Hodgdon H335 | <<locked>> | 98% | 50,546 psi | 86% | 3068 fps | 97.1% |
| Hodgdon H4198 | <<locked>> | 92% | 52,924 psi | 90% | 2992 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,082 psi | 53% | 1834 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 40,030 psi | 68% | 2930 fps | 96.6% |
| IMR 4198 | <<locked>> | 98% | 51,721 psi | 88% | 3025 fps | 100% |
| IMR 4227 | <<locked>> | 88% | 52,823 psi | 90% | 2969 fps | 100% |
| Lovex D060 | <<locked>> | 82% | 52,939 psi | 90% | 3015 fps | 100% |
| Lovex D073.4 | <<locked>> | 94% | 52,388 psi | 89% | 3077 fps | 96.5% |
| Lovex S053 | <<locked>> | 88% | 51,358 psi | 87% | 2920 fps | 100% |
| Norma 200 | <<locked>> | 94% | 50,096 psi | 85% | 3028 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,922 psi | 53% | 1877 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 52,649 psi | 90% | 3005 fps | 100% |
| ReloadSwiss RS 40ᴾ | <<locked>> | 100% | 52,576 psi | 90% | 3074 fps | 96.4% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 45,107 psi | 77% | 2936 fps | 95.7% |
| Shooters World AR Plus | <<locked>> | 94% | 52,388 psi | 89% | 3077 fps | 96.5% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 52,939 psi | 90% | 3015 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 52,272 psi | 89% | 2769 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 51,517 psi | 88% | 3081 fps | 97.2% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 51,010 psi | 87% | 3048 fps | 98.8% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 45,136 psi | 77% | 2867 fps | 95.7% |
| Somchem S335ᴾ | <<locked>> | 100% | 42,917 psi | 73% | 2854 fps | 96.3% |
| Vihtavuori N110 | <<locked>> | 82% | 50,140 psi | 85% | 2818 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 52,837 psi | 90% | 2995 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 50,836 psi | 87% | 2989 fps | 99.7% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 44,063 psi | 75% | 2877 fps | 98.2% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 36,230 psi | 62% | 2808 fps | 96.7% |
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% | 38,609 psi | 66% | 2720 fps | 98.1% |
| Accurate 2015 | <<locked>> | 90% | 33,344 psi | 57% | 2684 fps | 95.6% |
| Accurate 2460 | <<locked>> | 96% | 44,251 psi | 75% | 2930 fps | 95.4% |
| Accurate 2495 | <<locked>> | 98% | 31,502 psi | 54% | 2720 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 84% | 37,405 psi | 64% | 2677 fps | 95.1% |
| Accurate LT-32 | <<locked>> | 90% | 45,614 psi | 78% | 2841 fps | 95.1% |
| ADI AR 2205 | <<locked>> | 80% | 49,313 psi | 84% | 2808 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 34,185 psi | 58% | 2703 fps | 99.7% |
| ADI AR 2219 | 24.4 gr | 88% | 39,334 psi | 67% | 2851 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 86% | 27,253 psi | 46% | 2582 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 82% | 30,327 psi | 52% | 2621 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,795 psi | 61% | 2697 fps | 98% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 37,710 psi | 64% | 2703 fps | 95.6% |
| Hodgdon H322 | 24.7 gr | 92% | 40,727 psi | 69% | 2884 fps | 95.8% |
| Hodgdon H335 | <<locked>> | 94% | 44,396 psi | 76% | 2956 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 84% | 41,350 psi | 70% | 2776 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,829 psi | 39% | 1640 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 35,491 psi | 60% | 2818 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 30,545 psi | 52% | 2572 fps | 96.7% |
| IMR 4227 | <<locked>> | 80% | 41,307 psi | 70% | 2769 fps | 99.9% |
| Lovex D060 | <<locked>> | 80% | 49,864 psi | 85% | 2963 fps | 99.9% |
| Lovex D073.4 | <<locked>> | 92% | 49,124 psi | 84% | 3025 fps | 95.8% |
| Lovex S053 | <<locked>> | 80% | 40,408 psi | 69% | 2736 fps | 100% |
| Norma 200 | 21 gr | 80% | 32,097 psi | 55% | 2654 fps | 97.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,872 psi | 39% | 1683 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 41,017 psi | 70% | 2802 fps | 99.8% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 48,936 psi | 83% | 3012 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 98% | 42,554 psi | 72% | 2887 fps | 95% |
| Shooters World AR Plus | <<locked>> | 92% | 49,124 psi | 84% | 3025 fps | 95.8% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 49,864 psi | 85% | 2963 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,811 psi | 64% | 2543 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 42,235 psi | 72% | 2907 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 35,027 psi | 60% | 2723 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 42,438 psi | 72% | 2815 fps | 95% |
| Somchem S335 | <<locked>> | 98% | 40,451 psi | 69% | 2805 fps | 95.7% |
| Vihtavuori N110 | <<locked>> | 80% | 47,674 psi | 81% | 2782 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 34,389 psi | 59% | 2671 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 31,111 psi | 53% | 2582 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 92% | 34,330 psi | 58% | 2671 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 96% | 32,111 psi | 55% | 2700 fps | 95.1% |
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 40 powders for 6 x 47 ATZL loaded with the .243 | 71gr | Berger BT M. Hodgdon H322 delivers the highest muzzle velocity at 3,104 fps; across all powders the maximum-charge window runs from 1,834 fps to 3,104 fps. Accurate 2015 gives the best case fill at 100 %, and 40 of the 40 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 71.0 gr projectile in 0.243" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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, Norma 200, Hodgdon H322 rank at the top here: for 6 x 47 ATZL with the .243 | 71gr | Berger BT 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.