Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 80gr | Sierra SP SSPistol bullet and 52 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>> | 86% | 51,938 psi | 88% | 2812 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 51,735 psi | 88% | 2894 fps | 99.9% |
| Accurate 2460 | <<locked>> | 96% | 50,647 psi | 86% | 2900 fps | 98.3% |
| Accurate 2495ᴾ | <<locked>> | 100% | 39,827 psi | 68% | 2766 fps | 99.1% |
| Accurate 2520ᴾ | <<locked>> | 100% | 51,024 psi | 87% | 2946 fps | 98% |
| Accurate 4064ᴾ | <<locked>> | 100% | 37,072 psi | 63% | 2720 fps | 96.2% |
| Accurate LT-30 | <<locked>> | 92% | 52,605 psi | 90% | 2825 fps | 99.4% |
| Accurate LT-32 | <<locked>> | 92% | 53,069 psi | 90% | 2835 fps | 98.2% |
| ADI AR 2207 | <<locked>> | 90% | 52,315 psi | 89% | 2874 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 50,807 psi | 86% | 2930 fps | 99.2% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 51,169 psi | 87% | 2907 fps | 96.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 47,935 psi | 82% | 2927 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 52,373 psi | 89% | 2923 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 51,082 psi | 87% | 2841 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 50,792 psi | 86% | 2812 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 98% | 51,706 psi | 88% | 2867 fps | 96.9% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 48,472 psi | 83% | 2923 fps | 96.4% |
| Hodgdon H322 | <<locked>> | 96% | 52,011 psi | 89% | 2949 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 94% | 49,588 psi | 84% | 2913 fps | 98.3% |
| Hodgdon H4198 | <<locked>> | 88% | 51,750 psi | 88% | 2831 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,140 psi | 55% | 1749 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 45,658 psi | 78% | 2907 fps | 99.2% |
| IMR 4198 | <<locked>> | 94% | 50,923 psi | 87% | 2854 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 51,532 psi | 88% | 2792 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 51,169 psi | 87% | 2907 fps | 96.2% |
| Lovex D073.4 | <<locked>> | 90% | 52,127 psi | 89% | 2930 fps | 97.9% |
| Lovex D073.5 | <<locked>> | 96% | 50,850 psi | 87% | 2900 fps | 97.2% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 45,208 psi | 77% | 2861 fps | 96.9% |
| Lovex S053 | <<locked>> | 84% | 50,401 psi | 86% | 2743 fps | 100% |
| Norma 200 | <<locked>> | 92% | 53,026 psi | 90% | 2913 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 46,688 psi | 79% | 2861 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,126 psi | 55% | 1791 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 51,256 psi | 87% | 2825 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 51,445 psi | 88% | 2917 fps | 97.7% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 51,140 psi | 87% | 2900 fps | 98.4% |
| Shooters World AR Plus | <<locked>> | 90% | 52,127 psi | 89% | 2930 fps | 97.9% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 45,208 psi | 77% | 2861 fps | 96.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 51,024 psi | 87% | 2592 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 51,271 psi | 87% | 2933 fps | 98.5% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 50,676 psi | 86% | 2890 fps | 99.6% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 50,256 psi | 86% | 2818 fps | 98.3% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,190 psi | 68% | 2657 fps | 97.3% |
| Somchem S321 | <<locked>> | 98% | 52,504 psi | 89% | 2953 fps | 96.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 48,486 psi | 83% | 2815 fps | 98.8% |
| Vihtavuori N120 | <<locked>> | 90% | 52,373 psi | 89% | 2822 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 50,299 psi | 86% | 2828 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 49,255 psi | 84% | 2822 fps | 99.7% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 41,205 psi | 70% | 2776 fps | 99.2% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 43,990 psi | 75% | 2785 fps | 97.6% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 51,953 psi | 88% | 2910 fps | 96.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 42,511 psi | 72% | 2772 fps | 96.7% |
| Winchester 748ᴾ | <<locked>> | 100% | 49,835 psi | 85% | 2946 fps | 96.9% |
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% | 42,714 psi | 73% | 2664 fps | 99.7% |
| Accurate 2015 | <<locked>> | 80% | 27,731 psi | 47% | 2402 fps | 95% |
| Accurate 2460 | <<locked>> | 88% | 38,551 psi | 66% | 2680 fps | 95.6% |
| Accurate 2495 | <<locked>> | 88% | 26,600 psi | 45% | 2448 fps | 95.1% |
| Accurate 2520 | <<locked>> | 92% | 38,580 psi | 66% | 2720 fps | 95.1% |
| Accurate 4064 | <<locked>> | 98% | 34,925 psi | 59% | 2674 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 36,782 psi | 63% | 2533 fps | 96.7% |
| Accurate LT-32 | <<locked>> | 82% | 39,363 psi | 67% | 2585 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 38,203 psi | 65% | 2638 fps | 100% |
| ADI AR 2219 | 22.6 gr | 80% | 33,924 psi | 58% | 2592 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 98% | 48,327 psi | 82% | 2858 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 25,425 psi | 43% | 2402 fps | 96.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,068 psi | 55% | 2530 fps | 97.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,537 psi | 67% | 2638 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,650 psi | 59% | 2510 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 94% | 45,701 psi | 78% | 2766 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 98% | 45,136 psi | 77% | 2864 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 82% | 33,141 psi | 56% | 2572 fps | 95.1% |
| Hodgdon H335 | 25.1 gr | 86% | 38,058 psi | 65% | 2690 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 40,582 psi | 69% | 2628 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,844 psi | 41% | 1568 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 31,198 psi | 53% | 2582 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 33,982 psi | 58% | 2533 fps | 99% |
| IMR 4227 | <<locked>> | 80% | 45,687 psi | 78% | 2700 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 48,327 psi | 82% | 2858 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 84% | 41,930 psi | 71% | 2753 fps | 95.8% |
| Lovex D073.5 | <<locked>> | 92% | 44,599 psi | 76% | 2795 fps | 95.8% |
| Lovex D073.6 | <<locked>> | 96% | 39,030 psi | 66% | 2743 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 44,817 psi | 76% | 2657 fps | 100% |
| Norma 200 | <<locked>> | 80% | 36,448 psi | 62% | 2615 fps | 99.3% |
| Norma 202 | <<locked>> | 92% | 36,013 psi | 61% | 2648 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,554 psi | 40% | 1601 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 45,629 psi | 78% | 2736 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 39,856 psi | 68% | 2700 fps | 95% |
| Rottweil R 901 | <<locked>> | 90% | 38,087 psi | 65% | 2654 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 84% | 41,930 psi | 71% | 2753 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 96% | 39,030 psi | 66% | 2743 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,263 psi | 70% | 2451 fps | 100% |
| SNPE Vectan SP 10 | 23.9 gr | 82% | 36,332 psi | 62% | 2644 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,793 psi | 56% | 2536 fps | 96.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 37,246 psi | 63% | 2579 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 33,663 psi | 57% | 2516 fps | 95.3% |
| Somchem S321 | <<locked>> | 94% | 45,701 psi | 78% | 2838 fps | 95.3% |
| Somchem S335 | <<locked>> | 88% | 33,707 psi | 57% | 2523 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 38,363 psi | 65% | 2598 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,111 psi | 53% | 2451 fps | 97.3% |
| Vihtavuori N133 | <<locked>> | 82% | 28,674 psi | 49% | 2395 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 88% | 28,326 psi | 48% | 2470 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 94% | 36,535 psi | 62% | 2631 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 98% | 48,921 psi | 83% | 2861 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 96% | 37,492 psi | 64% | 2667 fps | 95.3% |
| Winchester 748 | <<locked>> | 96% | 43,903 psi | 75% | 2838 fps | 95.4% |
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 | 80gr | Sierra SP SSPistol. Somchem S321 delivers the highest muzzle velocity at 2,953 fps; across all powders the maximum-charge window runs from 1,749 fps to 2,953 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 55–90 %, leaving at least 10 % headroom. The 80.0 gr projectile in 0.243" calls for a 1:11.5 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 | 80gr | Sierra SP SSPistol 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.