Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 75gr | Barnes BND SPIT-FIRE bullet and 40 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 ADI AR 2207.
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>> | 88% | 50,125 psi | 85% | 2835 fps | 99.7% |
| Accurate 2015ᴾ | <<locked>> | 100% | 45,643 psi | 78% | 2851 fps | 98.8% |
| Accurate 2460ᴾ | <<locked>> | 100% | 51,039 psi | 87% | 2953 fps | 97.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 33,446 psi | 57% | 2687 fps | 96.5% |
| Accurate LT-30 | <<locked>> | 94% | 50,778 psi | 86% | 2838 fps | 98.4% |
| Accurate LT-32 | <<locked>> | 94% | 51,300 psi | 87% | 2844 fps | 96.6% |
| ADI AR 2205 | <<locked>> | 82% | 52,025 psi | 89% | 2749 fps | 100% |
| ADI AR 2207 | <<locked>> | 94% | 52,547 psi | 89% | 2943 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 51,242 psi | 87% | 2982 fps | 98.3% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 41,771 psi | 71% | 2867 fps | 99.8% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 52,243 psi | 89% | 2982 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 92% | 51,590 psi | 88% | 2904 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 51,663 psi | 88% | 2871 fps | 98.7% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 52,518 psi | 89% | 3005 fps | 98.5% |
| Hodgdon H335 | <<locked>> | 98% | 50,256 psi | 86% | 2966 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 92% | 52,808 psi | 90% | 2890 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,183 psi | 53% | 1762 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 39,871 psi | 68% | 2835 fps | 96.8% |
| IMR 4198 | <<locked>> | 98% | 51,532 psi | 88% | 2920 fps | 100% |
| IMR 4227 | <<locked>> | 88% | 52,736 psi | 90% | 2867 fps | 100% |
| Lovex D060 | <<locked>> | 82% | 52,518 psi | 89% | 2904 fps | 100% |
| Lovex D073.4 | <<locked>> | 94% | 52,388 psi | 89% | 2982 fps | 96.7% |
| Lovex S053 | <<locked>> | 88% | 51,111 psi | 87% | 2815 fps | 100% |
| Norma 200 | <<locked>> | 96% | 52,663 psi | 90% | 2969 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,111 psi | 53% | 1808 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 52,243 psi | 89% | 2900 fps | 100% |
| ReloadSwiss RS 40ᴾ | <<locked>> | 100% | 52,083 psi | 89% | 2969 fps | 96.5% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 44,846 psi | 76% | 2838 fps | 95.9% |
| Shooters World AR Plus | <<locked>> | 94% | 52,388 psi | 89% | 2982 fps | 96.7% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 52,518 psi | 89% | 2904 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 51,808 psi | 88% | 2667 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 51,068 psi | 87% | 2976 fps | 97.3% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 50,488 psi | 86% | 2940 fps | 98.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 44,846 psi | 76% | 2769 fps | 95.9% |
| Somchem S335ᴾ | <<locked>> | 100% | 42,801 psi | 73% | 2762 fps | 96.5% |
| Vihtavuori N110 | <<locked>> | 82% | 50,546 psi | 86% | 2723 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 52,620 psi | 90% | 2894 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 50,531 psi | 86% | 2884 fps | 99.7% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 43,743 psi | 74% | 2779 fps | 98.3% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 35,911 psi | 61% | 2713 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% | 38,696 psi | 66% | 2631 fps | 98.3% |
| Accurate 2015 | <<locked>> | 88% | 31,038 psi | 53% | 2539 fps | 95% |
| Accurate 2460 | <<locked>> | 96% | 44,309 psi | 75% | 2838 fps | 95.7% |
| Accurate 2495 | <<locked>> | 98% | 31,241 psi | 53% | 2635 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 84% | 37,376 psi | 64% | 2585 fps | 95.4% |
| Accurate LT-32 | <<locked>> | 90% | 45,426 psi | 77% | 2743 fps | 95.3% |
| ADI AR 2205 | <<locked>> | 80% | 49,516 psi | 84% | 2713 fps | 100% |
| ADI AR 2207 | 19.1 gr | 80% | 33,823 psi | 58% | 2605 fps | 99.7% |
| ADI AR 2219 | 23.2 gr | 88% | 38,841 psi | 66% | 2749 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 86% | 27,267 psi | 46% | 2500 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 28,224 psi | 48% | 2477 fps | 95.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,534 psi | 60% | 2602 fps | 98.1% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 35,230 psi | 60% | 2562 fps | 95% |
| Hodgdon H322 | <<locked>> | 90% | 37,884 psi | 64% | 2726 fps | 95.2% |
| Hodgdon H335 | <<locked>> | 94% | 43,845 psi | 75% | 2851 fps | 95.8% |
| Hodgdon H4198 | <<locked>> | 82% | 38,754 psi | 66% | 2631 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,989 psi | 39% | 1578 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 35,143 psi | 60% | 2723 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 30,835 psi | 52% | 2497 fps | 97.1% |
| IMR 4227 | <<locked>> | 80% | 41,263 psi | 70% | 2674 fps | 99.9% |
| Lovex D060 | <<locked>> | 80% | 49,385 psi | 84% | 2851 fps | 99.9% |
| Lovex D073.4 | <<locked>> | 90% | 45,397 psi | 77% | 2861 fps | 95.1% |
| Lovex S053 | <<locked>> | 80% | 40,799 psi | 69% | 2648 fps | 100% |
| Norma 200 | <<locked>> | 80% | 31,850 psi | 54% | 2562 fps | 97.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,640 psi | 39% | 1611 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 40,785 psi | 69% | 2703 fps | 99.8% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 45,426 psi | 77% | 2854 fps | 95% |
| Rottweil R 901 | <<locked>> | 98% | 42,148 psi | 72% | 2785 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 90% | 45,397 psi | 77% | 2861 fps | 95.1% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 49,385 psi | 84% | 2851 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,884 psi | 64% | 2454 fps | 100% |
| SNPE Vectan SP 10 | 24.6 gr | 90% | 41,930 psi | 71% | 2812 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 34,954 psi | 60% | 2635 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 42,047 psi | 72% | 2717 fps | 95.1% |
| Somchem S335 | <<locked>> | 96% | 37,884 psi | 64% | 2661 fps | 95.1% |
| Vihtavuori N110 | <<locked>> | 80% | 47,311 psi | 81% | 2677 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 34,040 psi | 58% | 2572 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 29,066 psi | 49% | 2444 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 90% | 32,518 psi | 55% | 2539 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 96% | 31,691 psi | 54% | 2608 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 40 powders for 6 x 47 ATZL loaded with the .243 | 75gr | Barnes BND SPIT-FIRE. Hodgdon H322 delivers the highest muzzle velocity at 3,005 fps; across all powders the maximum-charge window runs from 1,762 fps to 3,005 fps. Accurate 2015 gives the best case fill at 100 %, and 40 of the 40 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 75.0 gr projectile in 0.243" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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, ADI AR 2207 rank at the top here: for 6 x 47 ATZL with the .243 | 75gr | Barnes BND SPIT-FIRE 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.