Load data for 6 x 47 ATZL + .243 | 77gr | IBEX TRD

6 x 47 ATZL cartridge drawing
IBEX logo

Load Specifications

Bullet Manufacturer:IBEX
Bullet Weight:77 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Case Length (l3):1.85"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:33 Grains of Water
Primer Size:Small Rifle (SR)
Barrel Length:23.62"
Max. allowed Pressure:58,740 psi
Recommended Twist Rate:1:9.5

Load data in caliber 6 x 47 ATZL with .243 | 77gr | IBEX TRD bullet and 45 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H322, Shooters World AR Plus and Lovex D073.4.

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"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>86%51,909 psi88%2822 fps99.9%
Accurate 2015ᴾ<<locked>>100%51,721 psi88%2904 fps99.7%
Accurate 2460<<locked>>96%51,068 psi87%2910 fps97.5%
Accurate 2495ᴾ<<locked>>100%40,988 psi70%2789 fps98.7%
Accurate 2520ᴾ<<locked>>100%50,560 psi86%2943 fps97.1%
Accurate LT-30<<locked>>92%52,243 psi89%2825 fps98.9%
Accurate LT-32<<locked>>92%52,779 psi90%2831 fps97.4%
ADI AR 2207<<locked>>90%51,866 psi88%2884 fps100%
ADI AR 2219<<locked>>94%53,113 psi90%2976 fps98.9%
Alliant AR-Compᴾ<<locked>>100%47,529 psi81%2930 fps100%
Alliant Reloder-10x<<locked>>96%52,431 psi89%2936 fps100%
Alliant Reloder-7<<locked>>88%51,097 psi87%2848 fps100%
Baschieri & Pellagri 106<<locked>>92%50,444 psi86%2815 fps98.9%
Hodgdon Benchmark<<locked>>98%50,865 psi87%2854 fps95.8%
Hodgdon H322<<locked>>96%51,329 psi87%2946 fps98.7%
Hodgdon H335<<locked>>96%52,301 psi89%2963 fps98%
Hodgdon H4198<<locked>>88%51,285 psi87%2828 fps98.4%
Hodgdon TrailBossᴾ<<locked>>100%32,590 psi55%1759 fps100%
IMR 3031ᴾ<<locked>>100%45,411 psi77%2907 fps98.5%
IMR 4198<<locked>>94%50,212 psi85%2858 fps100%
IMR 4227<<locked>>84%51,111 psi87%2799 fps100%
Lovex D073.4<<locked>>90%51,401 psi88%2923 fps97%
Lovex D073.5<<locked>>96%50,647 psi86%2897 fps96.1%
Lovex D073.6ᴾ<<locked>>100%44,324 psi75%2851 fps95.7%
Lovex S053<<locked>>84%50,314 psi86%2756 fps100%
Norma 200<<locked>>92%53,142 psi90%2923 fps100%
Norma 202ᴾ<<locked>>100%46,006 psi78%2854 fps96.9%
ReloadSwiss RS 14ᴾ<<locked>>100%32,735 psi56%1804 fps100%
ReloadSwiss RS 36<<locked>>84%51,343 psi87%2838 fps100%
ReloadSwiss RS 40<<locked>>96%51,053 psi87%2913 fps96.8%
Rottweil R 901ᴾ<<locked>>100%51,271 psi87%2900 fps97.6%
Shooters World AR Plus<<locked>>90%51,401 psi88%2923 fps97%
Shooters World Match Rifleᴾ<<locked>>100%44,324 psi75%2851 fps95.7%
SNPE Vectan BA6 1/2<<locked>>88%51,184 psi87%2612 fps100%
SNPE Vectan SP 10<<locked>>92%50,372 psi86%2923 fps97.6%
SNPE Vectan SP 3<<locked>>96%52,707 psi90%2933 fps99.4%
SNPE Vectan Tubal 3000ᴾ<<locked>>100%49,966 psi85%2818 fps97.4%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%40,219 psi68%2657 fps96.4%
Somchem S335ᴾ<<locked>>100%48,631 psi83%2822 fps98.1%
Vihtavuori N120<<locked>>90%51,808 psi88%2831 fps100%
Vihtavuori N130<<locked>>98%52,707 psi90%2874 fps99.9%
Vihtavuori N133ᴾ<<locked>>100%48,660 psi83%2822 fps99.3%
Vihtavuori N135ᴾ<<locked>>100%41,089 psi70%2776 fps98.5%
Vihtavuori N140ᴾ<<locked>>100%44,077 psi75%2789 fps96.7%
Vihtavuori N540ᴾ<<locked>>100%42,395 psi72%2769 fps95.7%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%42,801 psi73%2667 fps99.3%
Accurate 2015<<locked>>82%30,676 psi52%2474 fps95.3%
Accurate 2460<<locked>>90%41,930 psi71%2746 fps95.5%
Accurate 2495<<locked>>90%30,081 psi51%2539 fps95.6%
Accurate 2520<<locked>>96%44,295 psi75%2835 fps95.7%
Accurate LT-30<<locked>>80%36,666 psi62%2530 fps95.7%
Accurate LT-32<<locked>>86%44,512 psi76%2687 fps95.6%
ADI AR 2207<<locked>>80%39,001 psi66%2661 fps100%
ADI AR 2219<<locked>>82%36,274 psi62%2644 fps95.2%
Alliant AR-Comp<<locked>>80%26,527 psi45%2425 fps96%
Alliant Reloder-10x<<locked>>80%32,880 psi56%2549 fps97.3%
Alliant Reloder-7<<locked>>80%40,277 psi69%2651 fps99.3%
Baschieri & Pellagri 106<<locked>>80%34,954 psi60%2516 fps95.5%
Hodgdon Benchmark<<locked>>96%48,153 psi82%2808 fps95.2%
Hodgdon H32222.5 gr86%37,942 psi65%2684 fps95.7%
Hodgdon H335<<locked>>88%40,814 psi69%2749 fps95.4%
Hodgdon H4198<<locked>>80%40,263 psi69%2621 fps96.1%
Hodgdon TrailBoss<<locked>>80%24,091 psi41%1568 fps100%
IMR 3031<<locked>>90%33,779 psi58%2641 fps95.1%
IMR 4198<<locked>>80%34,592 psi59%2546 fps98.6%
IMR 4227<<locked>>80%45,339 psi77%2703 fps100%
Lovex D073.424.1 gr86%45,034 psi77%2808 fps95.5%
Lovex D073.5<<locked>>94%47,776 psi81%2851 fps95.5%
Lovex D073.6<<locked>>98%41,800 psi71%2802 fps95%
Lovex S053<<locked>>80%45,266 psi77%2674 fps100%
Norma 200<<locked>>80%37,768 psi64%2641 fps99.1%
Norma 202<<locked>>96%40,973 psi70%2756 fps95.6%
ReloadSwiss RS 14<<locked>>80%24,352 psi41%1614 fps100%
ReloadSwiss RS 36<<locked>>80%45,658 psi78%2746 fps100%
ReloadSwiss RS 40<<locked>>92%45,034 psi77%2805 fps95.4%
Rottweil R 901<<locked>>92%41,640 psi71%2720 fps95.4%
Shooters World AR Plus24.1 gr86%45,034 psi77%2808 fps95.5%
Shooters World Match Rifle<<locked>>98%41,800 psi71%2802 fps95%
SNPE Vectan BA6 1/2<<locked>>80%42,003 psi72%2470 fps100%
SNPE Vectan SP 10<<locked>>86%41,524 psi71%2759 fps95.6%
SNPE Vectan SP 3<<locked>>80%33,315 psi57%2543 fps95.2%
SNPE Vectan Tubal 3000<<locked>>92%39,943 psi68%2635 fps95%
SNPE Vectan Tubal 5000<<locked>>96%35,911 psi61%2562 fps95%
Somchem S335<<locked>>90%36,477 psi62%2585 fps95.1%
Vihtavuori N120<<locked>>80%39,030 psi66%2621 fps100%
Vihtavuori N130<<locked>>80%31,879 psi54%2464 fps96.7%
Vihtavuori N133<<locked>>84%31,212 psi53%2457 fps95.2%
Vihtavuori N135<<locked>>90%31,183 psi53%2546 fps95.6%
Vihtavuori N140<<locked>>96%38,914 psi66%2684 fps95.3%
Vihtavuori N540<<locked>>98%40,103 psi68%2723 fps95%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 45 powders for 6 x 47 ATZL loaded with the .243 | 77gr | IBEX TRD. ADI AR 2219 delivers the highest muzzle velocity at 2,976 fps; across all powders the maximum-charge window runs from 1,759 fps to 2,976 fps. Accurate 2015 gives the best case fill at 100 %, and 45 of the 45 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 77.0 gr projectile in 0.243" calls for a 1:9.5 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. Hodgdon H322, Shooters World AR Plus, Lovex D073.4 rank at the top here: for 6 x 47 ATZL with the .243 | 77gr | IBEX TRD 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.

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