Load data for 6 mm ARC + .243 | 85gr | IBEX TRD

6 mm ARC cartridge drawing
IBEX logo

Load Specifications

Bullet Manufacturer:IBEX
Bullet Weight:85 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Case Length (l3):1.5"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:34.5 Grains of Water
Primer Size:Small Rifle (SR)
Barrel Length:24"
Max. allowed Pressure:52,000 psi
Recommended Twist Rate:1:8.5

Load data in caliber 6 mm ARC with .243 | 85gr | IBEX TRD bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester 748, IMR 3031 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: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>90%44,295 psi85%2694 fps99.8%
Accurate 2460<<locked>>88%45,788 psi88%2743 fps98.2%
Accurate 2495<<locked>>92%44,324 psi85%2770 fps99.8%
Accurate 2495<<locked>>98%45,745 psi88%2782 fps99.9%
Accurate 2520<<locked>>94%46,470 psi89%2808 fps98.1%
Accurate 4064<<locked>>98%43,990 psi84%2766 fps98.6%
Accurate LT-30<<locked>>84%46,122 psi89%2648 fps99.3%
Accurate LT-32<<locked>>84%46,456 psi89%2654 fps98%
ADI AR 2219<<locked>>84%45,136 psi87%2751 fps99.1%
ADI Benchmark 8208<<locked>>92%46,891 psi90%2756 fps96.3%
Alliant AR-Comp<<locked>>92%44,135 psi85%2773 fps100%
Alliant Reloder- TS 15.5ᴾ<<locked>>100%46,760 psi90%2785 fps95.7%
Alliant Reloder-10x<<locked>>86%46,151 psi89%2730 fps100%
Baschieri & Pellagri 106<<locked>>84%45,281 psi87%2646 fps99.3%
Bofors RP3ᴾ<<locked>>100%46,282 psi89%2798 fps95.8%
Hodgdon Benchmark<<locked>>90%46,673 psi90%2706 fps96.9%
Hodgdon BL-C2<<locked>>94%45,861 psi88%2808 fps96.8%
Hodgdon H322<<locked>>90%46,137 psi89%2770 fps99.2%
Hodgdon H335<<locked>>84%44,701 psi86%2746 fps98.3%
Hodgdon H4198<<locked>>82%45,658 psi88%2648 fps98.8%
Hodgdon H4895<<locked>>94%47,050 psi90%2795 fps95.6%
Hodgdon LEVERevolution<<locked>>98%46,673 psi90%2838 fps95.8%
Hodgdon TrailBossᴾ<<locked>>100%34,824 psi67%1721 fps100%
IMR 3031<<locked>>98%46,673 psi90%2834 fps99.7%
IMR 4198<<locked>>86%46,601 psi89%2698 fps100%
IMR 8208 XBR<<locked>>92%46,891 psi90%2756 fps96.3%
Lovex D073.4<<locked>>82%45,455 psi87%2740 fps97.6%
Lovex D073.5<<locked>>88%46,644 psi90%2747 fps97.2%
Lovex D073.6<<locked>>94%44,744 psi86%2769 fps97.7%
Lovex S062<<locked>>98%46,717 psi90%2765 fps96.3%
Norma 200<<locked>>82%46,717 psi90%2712 fps100%
Norma 201<<locked>>94%46,746 psi90%2752 fps96.4%
Norma 202<<locked>>94%45,847 psi88%2765 fps98.5%
ReloadSwiss RS 14ᴾ<<locked>>100%34,635 psi67%1765 fps100%
ReloadSwiss RS 40<<locked>>88%46,528 psi89%2752 fps97.7%
ReloadSwiss RS 60ᴾ<<locked>>100%45,005 psi86%2808 fps96.3%
Rottweil R 901<<locked>>90%46,180 psi89%2723 fps98.3%
Rottweil R 902<<locked>>96%46,688 psi90%2740 fps96.3%
Shooters World AR Plus<<locked>>82%45,455 psi87%2740 fps97.6%
Shooters World Match Rifle<<locked>>94%44,744 psi86%2769 fps97.7%
Shooters World Precision<<locked>>98%46,717 psi90%2765 fps96.3%
SNPE Vectan SP 10<<locked>>84%45,745 psi88%2755 fps98.4%
SNPE Vectan SP 3<<locked>>86%45,005 psi87%2717 fps99.5%
SNPE Vectan Tubal 3000<<locked>>92%46,180 psi89%2674 fps98.4%
SNPE Vectan Tubal 5000<<locked>>98%45,672 psi88%2665 fps99%
Somchem S321<<locked>>88%44,469 psi85%2736 fps96.1%
Somchem S335<<locked>>92%45,150 psi87%2676 fps98.9%
Vihtavuori N120<<locked>>84%47,036 psi90%2648 fps100%
Vihtavuori N130<<locked>>88%45,455 psi87%2664 fps100%
Vihtavuori N133<<locked>>96%47,050 psi90%2708 fps99.9%
Vihtavuori N135<<locked>>98%45,759 psi88%2776 fps99.9%
Vihtavuori N140<<locked>>96%45,440 psi87%2735 fps98.7%
Vihtavuori N530<<locked>>90%46,093 psi89%2756 fps96.3%
Vihtavuori N540<<locked>>96%45,266 psi87%2759 fps98.3%
Winchester 748<<locked>>90%45,716 psi88%2800 fps97%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%33,344 psi64%2464 fps98.1%
Accurate 2460<<locked>>80%35,752 psi69%2536 fps95.8%
Accurate 2495<<locked>>80%31,285 psi60%2486 fps97.6%
Accurate 2495<<locked>>80%26,847 psi52%2362 fps96.3%
Accurate 2520<<locked>>86%35,969 psi69%2602 fps95.4%
Accurate 4064<<locked>>86%31,473 psi60%2489 fps95.2%
Accurate LT-30<<locked>>80%40,901 psi79%2549 fps98.5%
Accurate LT-32<<locked>>80%41,263 psi79%2556 fps96.8%
ADI AR 2219<<locked>>80%39,987 psi77%2650 fps98.2%
ADI Benchmark 8208<<locked>>90%43,947 psi84%2700 fps95.6%
Alliant AR-Comp<<locked>>80%31,198 psi60%2490 fps99.5%
Alliant Reloder- TS 15.5<<locked>>98%43,076 psi83%2739 fps95%
Alliant Reloder-10x<<locked>>80%38,827 psi75%2590 fps99.7%
Baschieri & Pellagri 106<<locked>>80%40,118 psi77%2549 fps98.6%
Bofors RP3<<locked>>98%42,627 psi82%2743 fps95%
Hodgdon Benchmark<<locked>>84%39,639 psi76%2565 fps95%
Hodgdon BL-C2<<locked>>90%40,292 psi77%2700 fps95.4%
Hodgdon H32221.4 gr80%34,447 psi66%2523 fps96.7%
Hodgdon H335<<locked>>80%39,334 psi76%2639 fps97.1%
Hodgdon H4198<<locked>>80%43,221 psi83%2602 fps98.4%
Hodgdon H4895<<locked>>92%44,672 psi86%2751 fps95%
Hodgdon LEVERevolution<<locked>>96%43,888 psi84%2785 fps95%
Hodgdon TrailBoss<<locked>>80%25,150 psi48%1535 fps100%
IMR 303121.1 gr82%29,472 psi57%2444 fps95.7%
IMR 4198<<locked>>80%39,465 psi76%2567 fps100%
IMR 8208 XBR<<locked>>90%43,947 psi84%2701 fps95.6%
Lovex D073.4<<locked>>80%42,525 psi82%2684 fps97%
Lovex D073.5<<locked>>82%39,073 psi75%2600 fps95.3%
Lovex D073.6<<locked>>88%37,202 psi71%2618 fps95.7%
Lovex S062<<locked>>94%41,408 psi80%2667 fps95%
Norma 200<<locked>>80%44,338 psi85%2670 fps100%
Norma 201<<locked>>90%41,713 psi80%2654 fps95%
Norma 202<<locked>>84%34,374 psi66%2525 fps95.6%
ReloadSwiss RS 14<<locked>>80%25,527 psi49%1578 fps100%
ReloadSwiss RS 40<<locked>>80%36,840 psi71%2554 fps95.1%
ReloadSwiss RS 60<<locked>>98%41,234 psi79%2750 fps95.4%
Rottweil R 901<<locked>>80%35,447 psi68%2494 fps95.6%
Rottweil R 902<<locked>>92%42,032 psi81%2651 fps95.1%
Shooters World AR Plus<<locked>>80%42,525 psi82%2684 fps97%
Shooters World Match Rifle<<locked>>88%37,202 psi71%2618 fps95.7%
Shooters World Precision<<locked>>94%41,408 psi80%2667 fps95%
SNPE Vectan SP 10<<locked>>80%40,756 psi78%2657 fps97.3%
SNPE Vectan SP 3<<locked>>80%37,927 psi73%2579 fps98.5%
SNPE Vectan Tubal 3000<<locked>>80%33,098 psi64%2400 fps95%
SNPE Vectan Tubal 5000<<locked>>84%30,139 psi58%2349 fps95.1%
Somchem S321<<locked>>86%41,858 psi80%2685 fps95.4%
Somchem S335<<locked>>80%32,576 psi63%2408 fps95.9%
Vihtavuori N120<<locked>>80%42,192 psi81%2568 fps100%
Vihtavuori N130<<locked>>80%36,303 psi70%2485 fps99.3%
Vihtavuori N133<<locked>>80%30,603 psi59%2365 fps97.1%
Vihtavuori N135<<locked>>80%27,151 psi52%2356 fps96.1%
Vihtavuori N140<<locked>>84%32,140 psi62%2450 fps95.2%
Vihtavuori N530<<locked>>88%43,743 psi84%2710 fps95.7%
Vihtavuori N540<<locked>>86%33,866 psi65%2516 fps95.2%
Winchester 74825.5 gr86%40,408 psi78%2690 fps95.6%

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.

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This overview compares 55 powders for 6 mm ARC loaded with the .243 | 85gr | IBEX TRD. Hodgdon LEVERevolution delivers the highest muzzle velocity at 2,838 fps; across all powders the maximum-charge window runs from 1,721 fps to 2,838 fps. Alliant Reloder- TS 15.5 gives the best case fill at 100 %, and 55 of the 55 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (359 MPa), the top charges use 67–90 %, leaving at least 10 % headroom. The 85.0 gr projectile in 0.243" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder- TS 15.5, Bofors RP3, Hodgdon TrailBoss 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. Winchester 748, IMR 3031, Hodgdon H322 rank at the top here: for 6 mm ARC with the .243 | 85gr | 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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