Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 75gr | Impala LW CFN bullet and 41 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>> | 86% | 51,372 psi | 87% | 2851 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 50,792 psi | 86% | 2927 fps | 99.5% |
| Accurate 2460 | <<locked>> | 96% | 50,111 psi | 85% | 2933 fps | 97.2% |
| Accurate 2495ᴾ | <<locked>> | 100% | 40,161 psi | 68% | 2812 fps | 98.3% |
| Accurate 2520ᴾ | <<locked>> | 100% | 49,530 psi | 84% | 2966 fps | 96.6% |
| Accurate LT-30 | <<locked>> | 92% | 51,663 psi | 88% | 2854 fps | 98.7% |
| Accurate LT-32 | <<locked>> | 92% | 52,141 psi | 89% | 2861 fps | 97.1% |
| ADI AR 2207 | <<locked>> | 90% | 51,242 psi | 87% | 2917 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 52,330 psi | 89% | 3002 fps | 98.7% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 46,717 psi | 80% | 2956 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 51,663 psi | 88% | 2966 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 88% | 50,546 psi | 86% | 2881 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 52,997 psi | 90% | 2890 fps | 99.1% |
| Hodgdon H322 | <<locked>> | 96% | 50,473 psi | 86% | 2972 fps | 98.4% |
| Hodgdon H335 | <<locked>> | 96% | 51,924 psi | 88% | 2995 fps | 97.8% |
| Hodgdon H4198 | <<locked>> | 88% | 50,734 psi | 86% | 2858 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,619 psi | 56% | 1788 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 44,643 psi | 76% | 2930 fps | 98.2% |
| IMR 4198 | <<locked>> | 96% | 52,620 psi | 90% | 2936 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 50,763 psi | 86% | 2835 fps | 100% |
| Lovex D073.4 | <<locked>> | 90% | 51,082 psi | 87% | 2956 fps | 96.7% |
| Lovex D073.5 | <<locked>> | 96% | 50,372 psi | 86% | 2930 fps | 95.8% |
| Lovex S053 | <<locked>> | 86% | 52,808 psi | 90% | 2831 fps | 100% |
| Norma 200 | <<locked>> | 92% | 52,953 psi | 90% | 2959 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 45,774 psi | 78% | 2887 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,692 psi | 56% | 1834 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 50,720 psi | 86% | 2871 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 50,285 psi | 86% | 2936 fps | 96.4% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 51,082 psi | 87% | 2936 fps | 97.4% |
| Shooters World AR Plus | <<locked>> | 90% | 51,082 psi | 87% | 2956 fps | 96.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 50,865 psi | 87% | 2648 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 52,997 psi | 90% | 3005 fps | 97.9% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 52,504 psi | 89% | 2969 fps | 99.3% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 49,763 psi | 85% | 2851 fps | 97.2% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,132 psi | 68% | 2687 fps | 96% |
| Somchem S335ᴾ | <<locked>> | 100% | 47,906 psi | 82% | 2848 fps | 97.8% |
| Vihtavuori N120 | <<locked>> | 90% | 51,256 psi | 87% | 2864 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 52,663 psi | 90% | 2913 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 48,544 psi | 83% | 2858 fps | 99.2% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 40,872 psi | 70% | 2812 fps | 98.3% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 43,381 psi | 74% | 2808 fps | 96.3% |
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% | 42,351 psi | 72% | 2697 fps | 99.1% |
| Accurate 2015 | <<locked>> | 84% | 32,097 psi | 55% | 2546 fps | 95.6% |
| Accurate 2460 | <<locked>> | 90% | 41,278 psi | 70% | 2769 fps | 95% |
| Accurate 2495 | <<locked>> | 90% | 29,515 psi | 50% | 2559 fps | 95.1% |
| Accurate 2520 | <<locked>> | 96% | 43,395 psi | 74% | 2854 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 36,419 psi | 62% | 2559 fps | 95.3% |
| Accurate LT-32 | <<locked>> | 86% | 44,063 psi | 75% | 2717 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 38,203 psi | 65% | 2684 fps | 100% |
| ADI AR 2219 | 22.9 gr | 84% | 38,348 psi | 65% | 2730 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 26,281 psi | 45% | 2448 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,590 psi | 55% | 2575 fps | 97% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,856 psi | 68% | 2680 fps | 99.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,592 psi | 59% | 2539 fps | 95% |
| Hodgdon H322 | 22.7 gr | 86% | 37,507 psi | 64% | 2710 fps | 95.3% |
| Hodgdon H335 | <<locked>> | 90% | 42,931 psi | 73% | 2831 fps | 95.8% |
| Hodgdon H4198 | <<locked>> | 80% | 39,885 psi | 68% | 2648 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,163 psi | 41% | 1598 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 35,636 psi | 61% | 2726 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 33,939 psi | 58% | 2566 fps | 98.2% |
| IMR 4227 | <<locked>> | 80% | 45,063 psi | 77% | 2736 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 44,411 psi | 76% | 2835 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 94% | 46,949 psi | 80% | 2874 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 44,440 psi | 76% | 2700 fps | 100% |
| Norma 200 | <<locked>> | 80% | 37,420 psi | 64% | 2671 fps | 98.8% |
| Norma 202 | <<locked>> | 96% | 40,364 psi | 69% | 2779 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,424 psi | 42% | 1644 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 44,802 psi | 76% | 2769 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 44,875 psi | 76% | 2838 fps | 95% |
| Rottweil R 901 | <<locked>> | 92% | 41,031 psi | 70% | 2746 fps | 95% |
| Shooters World AR Plus | <<locked>> | 86% | 44,411 psi | 76% | 2835 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,292 psi | 70% | 2500 fps | 100% |
| SNPE Vectan SP 10 | 24.3 gr | 86% | 41,495 psi | 71% | 2792 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 34,896 psi | 59% | 2618 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 41,800 psi | 71% | 2707 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 37,913 psi | 65% | 2641 fps | 95.4% |
| Somchem S335 | <<locked>> | 92% | 38,464 psi | 65% | 2664 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 38,247 psi | 65% | 2644 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,560 psi | 54% | 2490 fps | 96.3% |
| Vihtavuori N133 | <<locked>> | 86% | 32,692 psi | 56% | 2530 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 90% | 30,835 psi | 52% | 2566 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 98% | 41,017 psi | 70% | 2762 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 41 powders for 6 x 47 ATZL loaded with the .243 | 75gr | Impala LW CFN. SNPE Vectan SP 10 delivers the highest muzzle velocity at 3,005 fps; across all powders the maximum-charge window runs from 1,788 fps to 3,005 fps. Accurate 2015 gives the best case fill at 100 %, and 41 of the 41 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 75.0 gr projectile in 0.243" calls for a 1:10.0 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. Hodgdon H322, SNPE Vectan SP 10, ADI AR 2219 rank at the top here: for 6 x 47 ATZL with the .243 | 75gr | Impala LW CFN 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.