Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 89gr | Merlin Virtus bullet and 54 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Shooters World AR Plus, Lovex D073.4 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% | 50,488 psi | 86% | 2615 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 50,111 psi | 85% | 2694 fps | 99.9% |
| Accurate 2460 | <<locked>> | 98% | 52,446 psi | 89% | 2749 fps | 98.9% |
| Accurate 2495ᴾ | <<locked>> | 100% | 37,420 psi | 64% | 2559 fps | 99.1% |
| Accurate 2520ᴾ | <<locked>> | 100% | 46,485 psi | 79% | 2713 fps | 97.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 34,911 psi | 59% | 2523 fps | 96.2% |
| Accurate LT-30 | <<locked>> | 92% | 51,097 psi | 87% | 2625 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 92% | 51,605 psi | 88% | 2635 fps | 98.4% |
| ADI AR 2207 | <<locked>> | 90% | 50,531 psi | 86% | 2664 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 52,083 psi | 89% | 2766 fps | 99.6% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 49,806 psi | 85% | 2707 fps | 96.4% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 46,644 psi | 79% | 2726 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 49,879 psi | 85% | 2802 fps | 96% |
| Alliant Reloder-10x | <<locked>> | 96% | 50,705 psi | 86% | 2717 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 52,736 psi | 90% | 2684 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 53,113 psi | 90% | 2671 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 98% | 49,966 psi | 85% | 2664 fps | 97.1% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 46,615 psi | 79% | 2720 fps | 96.5% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 52,083 psi | 89% | 2766 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 94% | 51,517 psi | 88% | 2762 fps | 99% |
| Hodgdon H4198 | <<locked>> | 92% | 53,069 psi | 90% | 2667 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,923 psi | 54% | 1617 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 39,885 psi | 68% | 2628 fps | 98.6% |
| IMR 4198 | <<locked>> | 96% | 52,692 psi | 90% | 2694 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 50,270 psi | 86% | 2589 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 49,806 psi | 85% | 2707 fps | 96.4% |
| Lovex D073.4 | <<locked>> | 90% | 49,966 psi | 85% | 2720 fps | 98% |
| Lovex D073.5 | <<locked>> | 98% | 52,953 psi | 90% | 2756 fps | 97.9% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 42,772 psi | 73% | 2651 fps | 96.9% |
| Lovex S053 | <<locked>> | 86% | 51,996 psi | 89% | 2582 fps | 100% |
| Norma 200 | <<locked>> | 92% | 51,010 psi | 87% | 2703 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 45,049 psi | 77% | 2664 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,386 psi | 53% | 1647 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 49,893 psi | 85% | 2625 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 49,748 psi | 85% | 2710 fps | 97.8% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 48,602 psi | 83% | 2687 fps | 98.4% |
| Shooters World AR Plus | <<locked>> | 90% | 49,966 psi | 85% | 2720 fps | 98% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 42,772 psi | 73% | 2651 fps | 96.9% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 51,169 psi | 87% | 2680 fps | 96.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 52,924 psi | 90% | 2441 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 52,939 psi | 90% | 2776 fps | 99% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 52,431 psi | 89% | 2733 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 48,704 psi | 83% | 2621 fps | 98.4% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 38,841 psi | 66% | 2470 fps | 97.5% |
| Somchem S321 | <<locked>> | 98% | 50,444 psi | 86% | 2746 fps | 96.9% |
| Somchem S335ᴾ | <<locked>> | 100% | 46,702 psi | 80% | 2618 fps | 98.9% |
| Vihtavuori N120 | <<locked>> | 94% | 52,808 psi | 90% | 2644 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 50,662 psi | 86% | 2657 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 44,295 psi | 75% | 2575 fps | 99.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 39,537 psi | 67% | 2579 fps | 99.3% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 41,843 psi | 71% | 2582 fps | 97.7% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 53,040 psi | 90% | 2769 fps | 97.2% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 41,234 psi | 70% | 2598 fps | 97.1% |
| Winchester 748ᴾ | <<locked>> | 100% | 53,069 psi | 90% | 2818 fps | 98% |
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% | 41,611 psi | 71% | 2477 fps | 99.7% |
| Accurate 2015 | <<locked>> | 80% | 26,223 psi | 45% | 2218 fps | 95.1% |
| Accurate 2460 | <<locked>> | 86% | 34,679 psi | 59% | 2441 fps | 95% |
| Accurate 2495 | <<locked>> | 88% | 24,714 psi | 42% | 2260 fps | 95% |
| Accurate 2520 | <<locked>> | 94% | 37,782 psi | 64% | 2559 fps | 95.5% |
| Accurate 4064 | <<locked>> | 98% | 32,605 psi | 56% | 2470 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 35,665 psi | 61% | 2352 fps | 96.9% |
| Accurate LT-32 | <<locked>> | 82% | 37,971 psi | 65% | 2395 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 36,999 psi | 63% | 2448 fps | 100% |
| ADI AR 2219 | 20.5 gr | 80% | 32,343 psi | 55% | 2398 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 96% | 43,859 psi | 75% | 2608 fps | 95% |
| Alliant AR-Comp | <<locked>> | 80% | 24,221 psi | 41% | 2224 fps | 96.7% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 46,601 psi | 79% | 2746 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 30,879 psi | 53% | 2349 fps | 98.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 38,101 psi | 65% | 2444 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 33,504 psi | 57% | 2333 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 92% | 41,452 psi | 71% | 2516 fps | 95% |
| Hodgdon BL-C2 | <<locked>> | 98% | 43,656 psi | 74% | 2667 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 84% | 31,488 psi | 54% | 2379 fps | 95.1% |
| Hodgdon H335 | <<locked>> | 84% | 36,376 psi | 62% | 2493 fps | 95.8% |
| Hodgdon H4198 | <<locked>> | 80% | 36,883 psi | 63% | 2388 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,293 psi | 40% | 1440 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 29,037 psi | 49% | 2372 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 32,779 psi | 56% | 2346 fps | 99.1% |
| IMR 4227 | <<locked>> | 80% | 44,541 psi | 76% | 2503 fps | 100% |
| IMR 8208 XBR | <<locked>> | 96% | 43,859 psi | 75% | 2608 fps | 95% |
| Lovex D073.4 | 21.9 gr | 82% | 37,579 psi | 64% | 2503 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 90% | 39,436 psi | 67% | 2536 fps | 95% |
| Lovex D073.6 | <<locked>> | 96% | 37,275 psi | 63% | 2549 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 43,352 psi | 74% | 2457 fps | 100% |
| Norma 200 | <<locked>> | 80% | 34,824 psi | 59% | 2425 fps | 99.4% |
| Norma 202 | <<locked>> | 92% | 34,577 psi | 59% | 2461 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,974 psi | 39% | 1470 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 44,382 psi | 76% | 2539 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 38,421 psi | 65% | 2510 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 90% | 36,216 psi | 62% | 2457 fps | 95.5% |
| Shooters World AR Plus | 21.9 gr | 82% | 37,579 psi | 64% | 2503 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 96% | 37,275 psi | 63% | 2549 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 47,892 psi | 82% | 2631 fps | 95.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 40,234 psi | 68% | 2270 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 35,128 psi | 60% | 2457 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 31,444 psi | 54% | 2349 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 35,810 psi | 61% | 2392 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 32,343 psi | 55% | 2333 fps | 95.4% |
| Somchem S321 | <<locked>> | 94% | 44,338 psi | 75% | 2644 fps | 95.6% |
| Somchem S335 | <<locked>> | 88% | 32,271 psi | 55% | 2343 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 34,867 psi | 59% | 2369 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 29,138 psi | 50% | 2257 fps | 97.2% |
| Vihtavuori N133 | <<locked>> | 84% | 27,180 psi | 46% | 2215 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 88% | 27,137 psi | 46% | 2293 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 94% | 34,461 psi | 59% | 2434 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 94% | 43,366 psi | 74% | 2615 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 96% | 36,318 psi | 62% | 2497 fps | 95.6% |
| Winchester 748 | <<locked>> | 94% | 43,178 psi | 74% | 2654 fps | 95.9% |
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 54 powders for 6 x 47 ATZL loaded with the .243 | 89gr | Merlin Virtus. Winchester 748 delivers the highest muzzle velocity at 2,818 fps; across all powders the maximum-charge window runs from 1,617 fps to 2,818 fps. Accurate 2015 gives the best case fill at 100 %, and 54 of the 54 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 89.0 gr projectile in 0.243" calls for a 1:8.5 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. Shooters World AR Plus, Lovex D073.4, ADI AR 2219 rank at the top here: for 6 x 47 ATZL with the .243 | 89gr | Merlin Virtus 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.