Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 80gr | Sierra VarmintKing bullet and 47 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H335, Hodgdon H322 and Shooters World AR Plus.
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% | 50,676 psi | 86% | 2779 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 49,806 psi | 85% | 2848 fps | 99.7% |
| Accurate 2460 | <<locked>> | 98% | 52,054 psi | 89% | 2904 fps | 98.2% |
| Accurate 2495ᴾ | <<locked>> | 100% | 38,029 psi | 65% | 2717 fps | 98.6% |
| Accurate 2520ᴾ | <<locked>> | 100% | 48,762 psi | 83% | 2890 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 92% | 51,329 psi | 87% | 2785 fps | 99.1% |
| Accurate LT-32 | <<locked>> | 92% | 51,793 psi | 88% | 2792 fps | 97.7% |
| ADI AR 2207 | <<locked>> | 90% | 50,531 psi | 86% | 2835 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 51,996 psi | 89% | 2930 fps | 99.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 46,122 psi | 79% | 2881 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 50,836 psi | 87% | 2884 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 52,591 psi | 90% | 2844 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 52,808 psi | 90% | 2822 fps | 99.5% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 53,142 psi | 90% | 2871 fps | 96.9% |
| Hodgdon H322 | <<locked>> | 96% | 50,125 psi | 85% | 2900 fps | 98.9% |
| Hodgdon H335 | <<locked>> | 96% | 50,995 psi | 87% | 2917 fps | 98.3% |
| Hodgdon H4198 | <<locked>> | 90% | 52,808 psi | 90% | 2828 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,010 psi | 54% | 1732 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 43,976 psi | 75% | 2858 fps | 98.7% |
| IMR 4198 | <<locked>> | 96% | 52,417 psi | 89% | 2861 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 52,895 psi | 90% | 2795 fps | 100% |
| Lovex D073.4 | <<locked>> | 90% | 49,574 psi | 84% | 2871 fps | 97.2% |
| Lovex D073.5 | <<locked>> | 98% | 52,431 psi | 89% | 2907 fps | 97.1% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 43,033 psi | 73% | 2805 fps | 96% |
| Lovex S053 | <<locked>> | 86% | 51,488 psi | 88% | 2743 fps | 100% |
| Norma 200 | <<locked>> | 92% | 50,836 psi | 87% | 2864 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 44,454 psi | 76% | 2805 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,010 psi | 54% | 1775 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 49,559 psi | 84% | 2782 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 52,837 psi | 90% | 2917 fps | 97.7% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 48,747 psi | 83% | 2844 fps | 97.7% |
| Shooters World AR Plus | <<locked>> | 90% | 49,574 psi | 84% | 2871 fps | 97.2% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 43,033 psi | 73% | 2805 fps | 96% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 52,678 psi | 90% | 2602 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 52,663 psi | 90% | 2936 fps | 98.5% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 51,634 psi | 88% | 2890 fps | 99.6% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 48,544 psi | 83% | 2772 fps | 97.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 38,769 psi | 66% | 2612 fps | 96.6% |
| Somchem S321 | <<locked>> | 98% | 50,444 psi | 86% | 2900 fps | 96.1% |
| Somchem S335ᴾ | <<locked>> | 100% | 46,876 psi | 80% | 2772 fps | 98.3% |
| Vihtavuori N120 | <<locked>> | 90% | 50,618 psi | 86% | 2785 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 51,372 psi | 87% | 2828 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 47,442 psi | 81% | 2776 fps | 99.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 39,407 psi | 67% | 2723 fps | 98.7% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 42,525 psi | 72% | 2740 fps | 97% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 40,756 psi | 69% | 2720 fps | 95.9% |
| Winchester 748ᴾ | <<locked>> | 100% | 47,877 psi | 82% | 2890 fps | 96.1% |
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% | 41,365 psi | 70% | 2621 fps | 99.4% |
| Accurate 2015 | <<locked>> | 82% | 28,500 psi | 49% | 2408 fps | 95.1% |
| Accurate 2460 | <<locked>> | 90% | 39,726 psi | 68% | 2687 fps | 95.6% |
| Accurate 2495 | <<locked>> | 90% | 27,035 psi | 46% | 2451 fps | 95% |
| Accurate 2520 | <<locked>> | 94% | 39,334 psi | 67% | 2720 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 35,433 psi | 60% | 2487 fps | 95.9% |
| Accurate LT-32 | <<locked>> | 84% | 40,393 psi | 69% | 2589 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 36,941 psi | 63% | 2602 fps | 100% |
| ADI AR 2219 | <<locked>> | 82% | 34,766 psi | 59% | 2595 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 24,627 psi | 42% | 2359 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 30,937 psi | 53% | 2490 fps | 97.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 38,450 psi | 65% | 2602 fps | 99.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 33,620 psi | 57% | 2470 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 96% | 46,775 psi | 80% | 2766 fps | 95.5% |
| Hodgdon H322 | 22.1 gr | 84% | 33,910 psi | 58% | 2575 fps | 95% |
| Hodgdon H335 | 24.8 gr | 88% | 39,218 psi | 67% | 2700 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 39,073 psi | 67% | 2579 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,467 psi | 40% | 1545 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 31,995 psi | 54% | 2585 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 32,938 psi | 56% | 2490 fps | 98.6% |
| IMR 4227 | <<locked>> | 80% | 44,411 psi | 76% | 2661 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 43,163 psi | 73% | 2759 fps | 95.8% |
| Lovex D073.5 | <<locked>> | 94% | 45,716 psi | 78% | 2795 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 98% | 39,842 psi | 68% | 2743 fps | 95.1% |
| Lovex S053 | <<locked>> | 80% | 43,439 psi | 74% | 2618 fps | 100% |
| Norma 200 | <<locked>> | 80% | 34,882 psi | 59% | 2569 fps | 98.9% |
| Norma 202 | <<locked>> | 94% | 37,057 psi | 63% | 2654 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,163 psi | 39% | 1578 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 43,918 psi | 75% | 2690 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 41,060 psi | 70% | 2707 fps | 95% |
| Rottweil R 901 | <<locked>> | 92% | 38,479 psi | 66% | 2644 fps | 95.2% |
| Shooters World AR Plus | 24.3 gr | 86% | 43,163 psi | 73% | 2759 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 98% | 39,842 psi | 68% | 2743 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 40,306 psi | 69% | 2421 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 37,724 psi | 64% | 2657 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 31,372 psi | 53% | 2480 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 37,855 psi | 64% | 2575 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 34,330 psi | 58% | 2513 fps | 95.2% |
| Somchem S321 | <<locked>> | 96% | 46,905 psi | 80% | 2841 fps | 95.2% |
| Somchem S335 | <<locked>> | 90% | 34,534 psi | 59% | 2530 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 37,130 psi | 63% | 2562 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 29,733 psi | 51% | 2402 fps | 96.6% |
| Vihtavuori N133 | <<locked>> | 84% | 29,240 psi | 50% | 2395 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 90% | 28,935 psi | 49% | 2474 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 96% | 37,260 psi | 63% | 2631 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 98% | 38,406 psi | 65% | 2671 fps | 95.2% |
| Winchester 748 | <<locked>> | 98% | 44,585 psi | 76% | 2828 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 47 powders for 6 x 47 ATZL loaded with the .243 | 80gr | Sierra VarmintKing. SNPE Vectan SP 10 delivers the highest muzzle velocity at 2,936 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,936 fps. Accurate 2015 gives the best case fill at 100 %, and 47 of the 47 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 80.0 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 H335, Hodgdon H322, Shooters World AR Plus rank at the top here: for 6 x 47 ATZL with the .243 | 80gr | Sierra VarmintKing 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.