Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 80gr | Berger Varmint bullet and 52 powders. The key underlying parameters are shown in the table above.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 86% | 51,459 psi | 88% | 2799 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 51,198 psi | 87% | 2881 fps | 99.9% |
| Accurate 2460 | <<locked>> | 96% | 50,270 psi | 86% | 2887 fps | 98.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 39,305 psi | 67% | 2749 fps | 98.9% |
| Accurate 2520ᴾ | <<locked>> | 100% | 50,038 psi | 85% | 2923 fps | 97.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 36,579 psi | 62% | 2707 fps | 95.9% |
| Accurate LT-30 | <<locked>> | 92% | 52,112 psi | 89% | 2812 fps | 99.3% |
| Accurate LT-32 | <<locked>> | 92% | 52,620 psi | 90% | 2818 fps | 98% |
| ADI AR 2207 | <<locked>> | 90% | 51,648 psi | 88% | 2858 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 49,690 psi | 85% | 2907 fps | 99% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 50,792 psi | 86% | 2894 fps | 96% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 47,442 psi | 81% | 2910 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 51,764 psi | 88% | 2910 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 50,502 psi | 86% | 2825 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 50,430 psi | 86% | 2799 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 98% | 50,734 psi | 86% | 2844 fps | 96.6% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 47,558 psi | 81% | 2904 fps | 96% |
| Hodgdon H322 | <<locked>> | 96% | 51,503 psi | 88% | 2936 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 96% | 52,837 psi | 90% | 2956 fps | 98.7% |
| Hodgdon H4198 | <<locked>> | 88% | 51,198 psi | 87% | 2815 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,140 psi | 55% | 1742 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 45,194 psi | 77% | 2894 fps | 99.1% |
| IMR 4198 | <<locked>> | 94% | 50,299 psi | 86% | 2841 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 50,836 psi | 87% | 2776 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 50,792 psi | 86% | 2894 fps | 96% |
| Lovex D073.4 | <<locked>> | 90% | 51,053 psi | 87% | 2907 fps | 97.7% |
| Lovex D073.5 | <<locked>> | 96% | 50,430 psi | 86% | 2887 fps | 97% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 44,266 psi | 75% | 2838 fps | 96.6% |
| Lovex S053 | <<locked>> | 86% | 52,692 psi | 90% | 2769 fps | 100% |
| Norma 200 | <<locked>> | 92% | 52,402 psi | 89% | 2897 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 45,701 psi | 78% | 2838 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,126 psi | 55% | 1788 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 50,618 psi | 86% | 2812 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 51,010 psi | 87% | 2900 fps | 97.5% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 50,125 psi | 85% | 2877 fps | 98.1% |
| Shooters World AR Plus | <<locked>> | 90% | 51,053 psi | 87% | 2907 fps | 97.7% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 44,266 psi | 75% | 2838 fps | 96.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 50,821 psi | 87% | 2585 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 50,270 psi | 86% | 2907 fps | 98.3% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 50,038 psi | 85% | 2874 fps | 99.5% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 49,777 psi | 85% | 2805 fps | 98.1% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 39,798 psi | 68% | 2641 fps | 97.1% |
| Somchem S321 | <<locked>> | 98% | 51,590 psi | 88% | 2930 fps | 96.5% |
| Somchem S335ᴾ | <<locked>> | 100% | 48,095 psi | 82% | 2802 fps | 98.6% |
| Vihtavuori N120 | <<locked>> | 90% | 51,706 psi | 88% | 2808 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 52,808 psi | 90% | 2858 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 48,747 psi | 83% | 2808 fps | 99.7% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 40,698 psi | 69% | 2759 fps | 99% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 43,627 psi | 74% | 2772 fps | 97.4% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 51,605 psi | 88% | 2897 fps | 96.2% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 42,192 psi | 72% | 2759 fps | 96.5% |
| Winchester 748ᴾ | <<locked>> | 100% | 48,965 psi | 83% | 2923 fps | 96.6% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 42,206 psi | 72% | 2648 fps | 99.6% |
| Accurate 2015 | <<locked>> | 82% | 29,312 psi | 50% | 2441 fps | 95.6% |
| Accurate 2460 | <<locked>> | 88% | 38,058 psi | 65% | 2664 fps | 95.3% |
| Accurate 2495 | <<locked>> | 90% | 27,847 psi | 47% | 2480 fps | 95.6% |
| Accurate 2520 | <<locked>> | 94% | 40,538 psi | 69% | 2756 fps | 95.6% |
| Accurate 4064 | <<locked>> | 98% | 34,403 psi | 59% | 2657 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 36,245 psi | 62% | 2516 fps | 96.4% |
| Accurate LT-32 | <<locked>> | 84% | 41,220 psi | 70% | 2618 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 37,985 psi | 65% | 2628 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 33,475 psi | 57% | 2572 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 98% | 47,384 psi | 81% | 2835 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 25,295 psi | 43% | 2392 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,850 psi | 54% | 2520 fps | 97.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,407 psi | 67% | 2628 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,243 psi | 58% | 2493 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 94% | 45,324 psi | 77% | 2749 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 98% | 44,817 psi | 76% | 2851 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 84% | 34,650 psi | 59% | 2605 fps | 95.6% |
| Hodgdon H335 | <<locked>> | 86% | 37,637 psi | 64% | 2674 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 80% | 40,001 psi | 68% | 2608 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,757 psi | 40% | 1562 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 33,083 psi | 56% | 2625 fps | 95.9% |
| IMR 4198 | <<locked>> | 80% | 33,460 psi | 57% | 2513 fps | 98.8% |
| IMR 4227 | <<locked>> | 80% | 45,005 psi | 77% | 2680 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 47,384 psi | 81% | 2835 fps | 95.2% |
| Lovex D073.4 | <<locked>> | 84% | 41,379 psi | 70% | 2733 fps | 95.5% |
| Lovex D073.5 | <<locked>> | 92% | 43,613 psi | 74% | 2769 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 98% | 41,046 psi | 70% | 2779 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 44,092 psi | 75% | 2638 fps | 100% |
| Norma 200 | <<locked>> | 80% | 35,839 psi | 61% | 2598 fps | 99.2% |
| Norma 202 | <<locked>> | 94% | 37,753 psi | 64% | 2680 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,453 psi | 40% | 1591 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 44,962 psi | 77% | 2720 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 41,785 psi | 71% | 2733 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 90% | 37,521 psi | 64% | 2635 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 84% | 41,379 psi | 70% | 2733 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 98% | 41,046 psi | 70% | 2779 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,017 psi | 70% | 2441 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 38,464 psi | 65% | 2684 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,271 psi | 55% | 2516 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 36,782 psi | 63% | 2562 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 33,330 psi | 57% | 2500 fps | 95% |
| Somchem S321 | <<locked>> | 94% | 45,281 psi | 77% | 2822 fps | 95.1% |
| Somchem S335 | <<locked>> | 90% | 35,259 psi | 60% | 2556 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 38,159 psi | 65% | 2592 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,545 psi | 52% | 2431 fps | 97% |
| Vihtavuori N133 | <<locked>> | 84% | 29,936 psi | 51% | 2425 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 88% | 27,920 psi | 48% | 2454 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 94% | 36,158 psi | 62% | 2618 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 98% | 47,950 psi | 82% | 2835 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 96% | 37,173 psi | 63% | 2654 fps | 95% |
| Winchester 748 | <<locked>> | 96% | 43,004 psi | 73% | 2812 fps | 95% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 78 powders for 6 x 47 ATZL loaded with the .243 | 80gr | Berger Varmint. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,989 fps; across all powders the maximum-charge window runs from 1,742 fps to 2,989 fps. Accurate 2015 gives the best case fill at 100 %, and 78 of the 78 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 80.0 gr projectile in 0.243" calls for a 1:11.0 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. As outliers, Accurate 2200, Accurate 2230, ADI AR 2206H burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.