Load data for 6 mm ARC + .243 | 85gr | Frontier PH HPFB

6 mm ARC cartridge drawing
Frontier Bullets logo

Load Specifications

Bullet Manufacturer:Frontier Bullets
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:1:9.5

Load data in caliber 6 mm ARC with .243 | 85gr | Frontier PH HPFB bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon BL-C2, Accurate 2520 and Alliant AR-Comp.

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>>92%44,628 psi86%2736 fps99.9%
Accurate 2460<<locked>>90%46,224 psi89%2789 fps98.6%
Accurate 2495ᴾ<<locked>>100%45,339 psi87%2815 fps100%
Accurate 2520<<locked>>94%44,396 psi85%2808 fps98%
Accurate 4064ᴾ<<locked>>100%42,105 psi81%2782 fps98.6%
Accurate LT-30<<locked>>84%44,585 psi86%2654 fps99.3%
Accurate LT-32<<locked>>84%44,991 psi87%2664 fps97.9%
ADI AR 2207<<locked>>82%44,672 psi86%2703 fps100%
ADI AR 2219<<locked>>86%45,687 psi88%2804 fps99.3%
ADI Benchmark 8208<<locked>>94%46,514 psi89%2792 fps96.6%
Alliant AR-Comp<<locked>>96%47,021 psi90%2861 fps100%
Alliant Power Pro 1200-R<<locked>>90%46,992 psi90%2894 fps96.2%
Alliant Reloder-10x<<locked>>88%45,237 psi87%2762 fps100%
Alliant Reloder-7<<locked>>82%46,180 psi89%2714 fps100%
Baschieri & Pellagri 106<<locked>>86%45,687 psi88%2693 fps99.5%
Hodgdon Benchmark<<locked>>92%46,978 psi90%2755 fps97.3%
Hodgdon BL-C2<<locked>>94%44,135 psi85%2812 fps96.8%
Hodgdon H322<<locked>>92%46,224 psi89%2813 fps99.4%
Hodgdon H335<<locked>>86%44,759 psi86%2789 fps98.5%
Hodgdon H4198<<locked>>84%45,992 psi88%2696 fps99.1%
Hodgdon H4895<<locked>>96%46,992 psi90%2840 fps96%
Hodgdon LEVERevolution<<locked>>98%45,049 psi87%2844 fps95.8%
Hodgdon TrailBossᴾ<<locked>>100%33,591 psi65%1734 fps100%
IMR 3031ᴾ<<locked>>100%46,920 psi90%2870 fps99.8%
IMR 4198<<locked>>88%47,007 psi90%2746 fps100%
IMR 8208 XBR<<locked>>94%46,514 psi89%2793 fps96.6%
Lovex D073.4<<locked>>84%46,398 psi89%2799 fps98.1%
Lovex D073.5<<locked>>90%46,253 psi89%2788 fps97.5%
Lovex D073.6<<locked>>98%47,108 psi90%2856 fps98.4%
Lovex S062<<locked>>98%42,975 psi83%2746 fps95.9%
Norma 200<<locked>>84%45,556 psi87%2744 fps100%
Norma 201<<locked>>96%45,542 psi87%2779 fps96.5%
Norma 202<<locked>>96%45,701 psi88%2807 fps98.7%
ReloadSwiss RS 14ᴾ<<locked>>100%33,475 psi64%1776 fps100%
ReloadSwiss RS 40<<locked>>90%46,789 psi90%2800 fps98%
Rottweil R 901<<locked>>94%46,905 psi90%2790 fps98.7%
Rottweil R 902<<locked>>96%42,989 psi83%2720 fps95.8%
Shooters World AR Plus<<locked>>84%46,398 psi89%2799 fps98.1%
Shooters World Match Rifle<<locked>>98%47,108 psi90%2856 fps98.4%
Shooters World Precision<<locked>>98%42,975 psi83%2746 fps95.9%
SNPE Vectan BA6 1/2<<locked>>82%46,543 psi89%2479 fps100%
SNPE Vectan SP 10<<locked>>86%45,803 psi88%2800 fps98.6%
SNPE Vectan SP 3<<locked>>88%46,325 psi89%2776 fps99.8%
SNPE Vectan Tubal 3000<<locked>>94%45,905 psi88%2713 fps98.6%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%45,049 psi87%2701 fps99.1%
Somchem S321<<locked>>90%44,585 psi86%2783 fps96.5%
Somchem S335<<locked>>94%44,730 psi86%2715 fps99.1%
Vihtavuori N120<<locked>>86%46,920 psi90%2689 fps100%
Vihtavuori N130<<locked>>90%44,744 psi86%2697 fps100%
Vihtavuori N133<<locked>>98%47,108 psi90%2750 fps99.9%
Vihtavuori N135ᴾ<<locked>>100%46,340 psi89%2818 fps100%
Vihtavuori N140<<locked>>98%44,947 psi86%2768 fps98.9%
Vihtavuori N530<<locked>>92%46,369 psi89%2805 fps96.7%
Vihtavuori N540<<locked>>98%46,325 psi89%2796 fps98.5%
Winchester 748<<locked>>92%46,209 psi89%2852 fps97.5%

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%30,879 psi59%2448 fps97.6%
Accurate 2460<<locked>>80%32,909 psi63%2516 fps95.2%
Accurate 2495<<locked>>82%24,845 psi48%2356 fps95.7%
Accurate 252026.4 gr88%35,969 psi69%2641 fps95.8%
Accurate 4064<<locked>>90%30,443 psi58%2523 fps95.2%
Accurate LT-30<<locked>>80%39,407 psi76%2556 fps98.5%
Accurate LT-32<<locked>>80%39,784 psi77%2562 fps96.8%
ADI AR 2207<<locked>>80%42,148 psi81%2660 fps100%
ADI AR 2219<<locked>>80%37,144 psi71%2635 fps97.8%
ADI Benchmark 8208<<locked>>90%41,263 psi79%2694 fps95.2%
Alliant AR-Comp22 gr80%28,094 psi54%2458 fps99%
Alliant Power Pro 1200-R<<locked>>88%43,787 psi84%2831 fps95.3%
Alliant Reloder-10x<<locked>>80%35,520 psi68%2571 fps99.5%
Alliant Reloder-7<<locked>>80%43,221 psi83%2663 fps100%
Baschieri & Pellagri 106<<locked>>80%37,884 psi73%2546 fps98.4%
Hodgdon Benchmark<<locked>>86%39,175 psi75%2603 fps95.3%
Hodgdon BL-C227.3 gr90%38,551 psi74%2700 fps95.2%
Hodgdon H322<<locked>>80%31,604 psi61%2501 fps96%
Hodgdon H335<<locked>>80%36,187 psi69%2615 fps96.5%
Hodgdon H4198<<locked>>80%41,046 psi79%2603 fps98.3%
Hodgdon H4895<<locked>>94%43,976 psi84%2782 fps95.2%
Hodgdon LEVERevolution<<locked>>96%42,264 psi81%2789 fps95%
Hodgdon TrailBoss<<locked>>80%24,352 psi47%1552 fps100%
IMR 3031<<locked>>84%27,891 psi54%2454 fps95.4%
IMR 4198<<locked>>80%36,898 psi71%2559 fps99.9%
IMR 8208 XBR<<locked>>90%41,263 psi79%2692 fps95.2%
Lovex D073.4<<locked>>80%40,335 psi78%2684 fps96.8%
Lovex D073.5<<locked>>84%37,347 psi72%2616 fps95.2%
Lovex D073.6<<locked>>90%35,969 psi69%2642 fps95.8%
Lovex S062<<locked>>96%40,698 psi78%2701 fps95.2%
Norma 200<<locked>>80%40,161 psi77%2648 fps100%
Norma 201<<locked>>92%40,321 psi77%2677 fps95.1%
Norma 202<<locked>>86%33,272 psi64%2548 fps95.6%
ReloadSwiss RS 14<<locked>>80%24,120 psi46%1583 fps100%
ReloadSwiss RS 40<<locked>>82%36,187 psi69%2586 fps95.3%
Rottweil R 901<<locked>>82%32,996 psi63%2498 fps95.1%
Rottweil R 902<<locked>>94%40,625 psi78%2673 fps95.1%
Shooters World AR Plus<<locked>>80%40,335 psi78%2684 fps96.8%
Shooters World Match Rifle<<locked>>90%35,969 psi69%2642 fps95.8%
Shooters World Precision<<locked>>96%40,698 psi78%2701 fps95.2%
SNPE Vectan BA6 1/2<<locked>>80%44,454 psi85%2448 fps100%
SNPE Vectan SP 10<<locked>>80%37,550 psi72%2635 fps96.8%
SNPE Vectan SP 3<<locked>>80%35,781 psi69%2569 fps98.2%
SNPE Vectan Tubal 3000<<locked>>84%33,678 psi65%2467 fps95.6%
SNPE Vectan Tubal 5000<<locked>>88%30,821 psi59%2418 fps95.8%
Somchem S321<<locked>>88%41,278 psi79%2719 fps95.6%
Somchem S335<<locked>>82%30,835 psi59%2419 fps95.6%
Vihtavuori N120<<locked>>80%39,479 psi76%2566 fps100%
Vihtavuori N130<<locked>>80%33,359 psi64%2469 fps98.9%
Vihtavuori N133<<locked>>80%27,514 psi53%2334 fps96.2%
Vihtavuori N135<<locked>>80%24,584 psi47%2323 fps95.1%
Vihtavuori N140<<locked>>86%31,053 psi60%2471 fps95.1%
Vihtavuori N530<<locked>>88%40,886 psi79%2700 fps95.3%
Vihtavuori N540<<locked>>88%32,605 psi63%2534 fps95.2%
Winchester 748<<locked>>86%37,449 psi72%2673 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 55 powders for 6 mm ARC loaded with the .243 | 85gr | Frontier PH HPFB. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,894 fps; across all powders the maximum-charge window runs from 1,734 fps to 2,894 fps. Accurate 2495 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 64–90 %, leaving at least 10 % headroom. The 85.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, 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. Hodgdon BL-C2, Accurate 2520, Alliant AR-Comp rank at the top here: for 6 mm ARC with the .243 | 85gr | Frontier PH HPFB 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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