Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 90gr | Berger BT Target bullet and 58 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H335, Somchem S321 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>> | 84% | 50,343 psi | 86% | 2608 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 50,299 psi | 86% | 2687 fps | 100% |
| Accurate 2460 | <<locked>> | 96% | 52,431 psi | 89% | 2746 fps | 99.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 41,872 psi | 71% | 2625 fps | 99.7% |
| Accurate 2520ᴾ | <<locked>> | 100% | 52,837 psi | 90% | 2789 fps | 98.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 38,928 psi | 66% | 2592 fps | 97.6% |
| Accurate LT-30 | <<locked>> | 90% | 50,807 psi | 86% | 2615 fps | 99.6% |
| Accurate LT-32 | <<locked>> | 90% | 51,314 psi | 87% | 2628 fps | 98.6% |
| ADI AR 2207 | <<locked>> | 88% | 50,821 psi | 87% | 2657 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 52,475 psi | 89% | 2769 fps | 99.7% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 52,750 psi | 90% | 2749 fps | 97.4% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 49,893 psi | 85% | 2762 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 50,024 psi | 85% | 2799 fps | 96.4% |
| Alliant Reloder-10x | <<locked>> | 94% | 50,981 psi | 87% | 2713 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 52,228 psi | 89% | 2667 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 52,562 psi | 89% | 2657 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 98% | 52,765 psi | 90% | 2703 fps | 97.9% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 50,183 psi | 85% | 2772 fps | 97.6% |
| Hodgdon H322 | <<locked>> | 94% | 50,560 psi | 86% | 2740 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 94% | 51,285 psi | 87% | 2756 fps | 99.1% |
| Hodgdon H4198 | <<locked>> | 88% | 52,794 psi | 90% | 2661 fps | 99.6% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 49,705 psi | 85% | 2743 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,271 psi | 55% | 1621 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 47,456 psi | 81% | 2756 fps | 99.8% |
| IMR 4198 | <<locked>> | 94% | 52,663 psi | 90% | 2687 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 52,939 psi | 90% | 2618 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 52,750 psi | 90% | 2749 fps | 97.4% |
| Lovex D073.4 | <<locked>> | 88% | 50,169 psi | 85% | 2717 fps | 98.3% |
| Lovex D073.5 | <<locked>> | 96% | 52,910 psi | 90% | 2749 fps | 98.2% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 46,615 psi | 79% | 2710 fps | 98% |
| Lovex S053 | <<locked>> | 84% | 51,590 psi | 88% | 2569 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 51,503 psi | 88% | 2674 fps | 95.7% |
| Norma 200 | <<locked>> | 90% | 51,634 psi | 88% | 2700 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 48,573 psi | 83% | 2690 fps | 96.7% |
| Norma 202ᴾ | <<locked>> | 100% | 48,124 psi | 82% | 2707 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,372 psi | 55% | 1660 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 52,605 psi | 90% | 2651 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 50,227 psi | 86% | 2713 fps | 98.2% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 52,895 psi | 90% | 2743 fps | 99.2% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 45,527 psi | 78% | 2628 fps | 95.9% |
| Shooters World AR Plus | <<locked>> | 88% | 50,169 psi | 85% | 2717 fps | 98.3% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 46,615 psi | 79% | 2710 fps | 98% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 50,763 psi | 86% | 2674 fps | 96.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 52,402 psi | 89% | 2428 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 52,692 psi | 90% | 2769 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 52,402 psi | 89% | 2726 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 51,764 psi | 88% | 2664 fps | 99.1% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,423 psi | 71% | 2513 fps | 98.4% |
| Somchem S321 | <<locked>> | 96% | 50,850 psi | 87% | 2746 fps | 97.4% |
| Somchem S335ᴾ | <<locked>> | 100% | 50,343 psi | 86% | 2667 fps | 99.5% |
| Vihtavuori N120 | <<locked>> | 88% | 50,894 psi | 87% | 2612 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 52,069 psi | 89% | 2667 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 50,792 psi | 86% | 2661 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,757 psi | 73% | 2625 fps | 99.7% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 45,905 psi | 78% | 2644 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 98% | 50,343 psi | 86% | 2707 fps | 97% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 44,106 psi | 75% | 2631 fps | 97.9% |
| Winchester 748ᴾ | <<locked>> | 100% | 51,271 psi | 87% | 2789 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% | 43,990 psi | 75% | 2510 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 28,776 psi | 49% | 2274 fps | 96.6% |
| Accurate 2460 | <<locked>> | 84% | 35,099 psi | 60% | 2441 fps | 95.5% |
| Accurate 2495 | <<locked>> | 84% | 24,598 psi | 42% | 2238 fps | 95.2% |
| Accurate 2520 | <<locked>> | 88% | 34,969 psi | 60% | 2477 fps | 95% |
| Accurate 4064 | <<locked>> | 94% | 32,097 psi | 55% | 2444 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 37,405 psi | 64% | 2382 fps | 97.7% |
| Accurate LT-32 | <<locked>> | 80% | 37,782 psi | 64% | 2388 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 39,813 psi | 68% | 2487 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 35,041 psi | 60% | 2454 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 94% | 43,918 psi | 75% | 2605 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 26,368 psi | 45% | 2283 fps | 98.1% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 46,905 psi | 80% | 2746 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,083 psi | 56% | 2388 fps | 98.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,828 psi | 70% | 2487 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,926 psi | 61% | 2379 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 90% | 41,626 psi | 71% | 2516 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 94% | 41,104 psi | 70% | 2618 fps | 95.5% |
| Hodgdon H322 | 20.5 gr | 80% | 32,126 psi | 55% | 2385 fps | 95.8% |
| Hodgdon H335 | 22.5 gr | 82% | 34,635 psi | 59% | 2451 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 41,234 psi | 70% | 2470 fps | 98% |
| Hodgdon H4895 | <<locked>> | 98% | 46,731 psi | 80% | 2690 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,902 psi | 41% | 1447 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 28,660 psi | 49% | 2352 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 35,143 psi | 60% | 2388 fps | 99.7% |
| IMR 4227 | <<locked>> | 80% | 47,195 psi | 80% | 2539 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 43,918 psi | 75% | 2605 fps | 95.4% |
| Lovex D073.4 | <<locked>> | 80% | 37,811 psi | 64% | 2500 fps | 95.6% |
| Lovex D073.5 | <<locked>> | 88% | 40,089 psi | 68% | 2539 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 92% | 35,505 psi | 60% | 2503 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 46,137 psi | 79% | 2490 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 48,544 psi | 83% | 2628 fps | 95% |
| Norma 200 | <<locked>> | 80% | 37,855 psi | 64% | 2474 fps | 99.8% |
| Norma 201 | <<locked>> | 96% | 42,888 psi | 73% | 2592 fps | 95.3% |
| Norma 202 | <<locked>> | 88% | 33,025 psi | 56% | 2415 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,670 psi | 40% | 1480 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,528 psi | 79% | 2566 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 38,798 psi | 66% | 2510 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 86% | 34,650 psi | 59% | 2411 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 98% | 42,772 psi | 73% | 2579 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 37,811 psi | 64% | 2500 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 92% | 35,505 psi | 60% | 2503 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 44,266 psi | 75% | 2569 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 42,380 psi | 72% | 2293 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 35,288 psi | 60% | 2454 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,895 psi | 58% | 2398 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 33,620 psi | 57% | 2339 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 30,705 psi | 52% | 2290 fps | 95.2% |
| Somchem S321 | 24.8 gr | 90% | 41,249 psi | 70% | 2582 fps | 95.1% |
| Somchem S335 | <<locked>> | 84% | 31,067 psi | 53% | 2303 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 39,972 psi | 68% | 2448 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 32,053 psi | 55% | 2313 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 80% | 27,876 psi | 47% | 2221 fps | 95.9% |
| Vihtavuori N135 | <<locked>> | 84% | 26,237 psi | 45% | 2257 fps | 95.6% |
| Vihtavuori N140 | <<locked>> | 90% | 33,315 psi | 57% | 2398 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 94% | 44,382 psi | 76% | 2608 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 92% | 34,156 psi | 58% | 2434 fps | 95.2% |
| Winchester 748 | <<locked>> | 92% | 39,682 psi | 68% | 2582 fps | 95.3% |
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 58 powders for 6 x 47 ATZL loaded with the .243 | 90gr | Berger BT Target. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,799 fps; across all powders the maximum-charge window runs from 1,621 fps to 2,799 fps. Accurate 2495 gives the best case fill at 100 %, and 58 of the 58 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 90.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 2520, Accurate 4064 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, Somchem S321, Hodgdon H322 rank at the top here: for 6 x 47 ATZL with the .243 | 90gr | Berger BT Target 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.