Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 70gr | Berger Target FB bullet and 37 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>> | 88% | 51,155 psi | 87% | 2982 fps | 99.8% |
| Accurate 2015ᴾ | <<locked>> | 100% | 47,036 psi | 80% | 3002 fps | 98.9% |
| Accurate 2460ᴾ | <<locked>> | 100% | 52,750 psi | 90% | 3110 fps | 97.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 35,070 psi | 60% | 2838 fps | 96.8% |
| Accurate LT-30 | <<locked>> | 94% | 51,314 psi | 87% | 2979 fps | 98.4% |
| Accurate LT-32 | <<locked>> | 94% | 51,822 psi | 88% | 2986 fps | 96.7% |
| ADI AR 2207 | <<locked>> | 92% | 50,546 psi | 86% | 3048 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 52,199 psi | 89% | 3136 fps | 98.4% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 43,410 psi | 74% | 3031 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 98% | 50,836 psi | 87% | 3094 fps | 99.8% |
| Alliant Reloder-7 | <<locked>> | 92% | 52,533 psi | 89% | 3054 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 49,966 psi | 85% | 2972 fps | 98.4% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 49,211 psi | 84% | 3084 fps | 97.9% |
| Hodgdon H335 | <<locked>> | 96% | 51,895 psi | 88% | 3127 fps | 97.5% |
| Hodgdon H4198 | <<locked>> | 94% | 53,026 psi | 90% | 3031 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,299 psi | 53% | 1864 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 52,460 psi | 89% | 3071 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 50,763 psi | 86% | 2972 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 50,198 psi | 85% | 3077 fps | 96.1% |
| Lovex D073.5ᴾ | <<locked>> | 100% | 52,939 psi | 90% | 3107 fps | 96% |
| Lovex S053 | <<locked>> | 88% | 51,837 psi | 88% | 2963 fps | 100% |
| Norma 200 | <<locked>> | 94% | 50,807 psi | 86% | 3074 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,154 psi | 53% | 1909 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 49,951 psi | 85% | 2999 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 49,806 psi | 85% | 3061 fps | 95.9% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 46,195 psi | 79% | 2992 fps | 96% |
| Shooters World AR Plus | <<locked>> | 92% | 50,198 psi | 85% | 3077 fps | 96.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 52,881 psi | 90% | 2812 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 52,997 psi | 90% | 3140 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 51,648 psi | 88% | 3094 fps | 99% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 46,166 psi | 79% | 2920 fps | 96.1% |
| Somchem S335ᴾ | <<locked>> | 100% | 44,280 psi | 75% | 2913 fps | 96.8% |
| Vihtavuori N110 | <<locked>> | 82% | 51,242 psi | 87% | 2874 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 49,574 psi | 84% | 2979 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 50,720 psi | 86% | 3022 fps | 99.7% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 41,234 psi | 70% | 2858 fps | 97.7% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 37,144 psi | 63% | 2861 fps | 97.1% |
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% | 39,334 psi | 67% | 2766 fps | 98.3% |
| Accurate 2015 | <<locked>> | 88% | 32,126 psi | 55% | 2684 fps | 95.2% |
| Accurate 2460 | <<locked>> | 94% | 42,583 psi | 72% | 2930 fps | 95% |
| Accurate 2495 | <<locked>> | 96% | 30,516 psi | 52% | 2723 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 84% | 38,174 psi | 65% | 2726 fps | 95.5% |
| Accurate LT-32 | <<locked>> | 90% | 46,296 psi | 79% | 2887 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 34,809 psi | 59% | 2746 fps | 99.8% |
| ADI AR 2219 | 25.1 gr | 88% | 39,885 psi | 68% | 2897 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 86% | 27,847 psi | 47% | 2631 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 28,993 psi | 49% | 2612 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 36,245 psi | 62% | 2740 fps | 98.1% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 36,129 psi | 62% | 2700 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 92% | 38,101 psi | 65% | 2854 fps | 95.1% |
| Hodgdon H335 | 27.2 gr | 90% | 42,206 psi | 72% | 2943 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 84% | 39,305 psi | 67% | 2766 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,235 psi | 40% | 1673 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 31,082 psi | 53% | 2618 fps | 97% |
| IMR 4227 | <<locked>> | 80% | 42,438 psi | 72% | 2825 fps | 99.9% |
| Lovex D073.4 | <<locked>> | 90% | 46,702 psi | 80% | 3015 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 98% | 49,255 psi | 84% | 3045 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 41,104 psi | 70% | 2779 fps | 100% |
| Norma 200 | <<locked>> | 80% | 32,967 psi | 56% | 2707 fps | 97.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,858 psi | 39% | 1709 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 41,510 psi | 71% | 2844 fps | 99.8% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 47,050 psi | 80% | 3012 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 98% | 43,656 psi | 74% | 2943 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 90% | 46,702 psi | 80% | 3015 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 38,624 psi | 66% | 2589 fps | 100% |
| SNPE Vectan SP 10 | 26.6 gr | 90% | 43,178 psi | 74% | 2959 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 35,795 psi | 61% | 2776 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 42,975 psi | 73% | 2858 fps | 95.3% |
| Somchem S335 | <<locked>> | 96% | 39,117 psi | 67% | 2808 fps | 95.4% |
| Vihtavuori N110 | <<locked>> | 80% | 48,791 psi | 83% | 2838 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 32,605 psi | 56% | 2654 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 82% | 29,298 psi | 50% | 2562 fps | 95% |
| Vihtavuori N133 | <<locked>> | 92% | 32,692 psi | 56% | 2661 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 96% | 32,648 psi | 56% | 2749 fps | 95.5% |
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 37 powders for 6 x 47 ATZL loaded with the .243 | 70gr | Berger Target FB. SNPE Vectan SP 10 delivers the highest muzzle velocity at 3,140 fps; across all powders the maximum-charge window runs from 1,864 fps to 3,140 fps. Accurate 2015 gives the best case fill at 100 %, and 37 of the 37 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 70.0 gr projectile in 0.243" calls for a 1:11.5 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, Hodgdon H335 rank at the top here: for 6 x 47 ATZL with the .243 | 70gr | Berger Target FB 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.