Load data for 5.56 x 45 NATO + .224 | 55gr | CutEdge MTH

5.56 x 45 NATO cartridge drawing
Cutting Edge logo

Load Specifications

Bullet Manufacturer:Cutting Edge
Bullet Weight:55 gr
Bullet Diameter:0.224"
Bullet Length:<<locked>>
Case Length (l3):1.759"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:30 Grains of Water
Primer Size:Small Rifle (SR)
Barrel Length:20"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:9.0

Load data in caliber 5.56 x 45 NATO with .224 | 55gr | CutEdge MTH bullet and 32 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Norma 200 and ADI AR 2207.

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: 20"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>90%53,490 psi86%2992 fps99.5%
Accurate 2015ᴾ<<locked>>100%45,150 psi72%2933 fps97.7%
Accurate 2460ᴾ<<locked>>100%51,184 psi82%3038 fps95.9%
Accurate LT-30<<locked>>96%54,085 psi87%2995 fps97.9%
Accurate LT-32<<locked>>96%54,592 psi88%3002 fps96%
ADI AR 2205<<locked>>84%55,187 psi88%2923 fps100%
ADI AR 2207<<locked>>96%55,666 psi89%3104 fps100%
ADI AR 2219<<locked>>98%55,216 psi89%3140 fps97.9%
Alliant AR-Compᴾ<<locked>>100%42,090 psi67%2963 fps99.2%
Alliant Reloder-10xᴾ<<locked>>100%52,431 psi84%3084 fps99.5%
Alliant Reloder-7<<locked>>94%54,607 psi88%3058 fps99.8%
Baschieri & Pellagri 106<<locked>>98%55,854 psi90%3022 fps98.5%
Hodgdon H322ᴾ<<locked>>100%52,910 psi85%3107 fps97.6%
Hodgdon H335ᴾ<<locked>>100%54,810 psi88%3127 fps96.9%
Hodgdon H4198<<locked>>94%55,999 psi90%3048 fps97.7%
Hodgdon TrailBossᴾ<<locked>>100%31,053 psi50%1893 fps100%
IMR 4198ᴾ<<locked>>100%54,592 psi88%3081 fps99.9%
IMR 4227<<locked>>90%55,695 psi89%3035 fps100%
Lovex D060<<locked>>84%55,651 psi89%3081 fps99.9%
Lovex S053<<locked>>90%53,592 psi86%2979 fps100%
Norma 200<<locked>>98%56,289 psi90%3127 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%30,356 psi49%1926 fps100%
ReloadSwiss RS 36<<locked>>90%55,709 psi89%3068 fps100%
Shooters World Buffalo Rifle<<locked>>84%55,651 psi89%3081 fps99.9%
Shooters World SOCOM<<locked>>82%53,722 psi86%2992 fps100%
SNPE Vectan BA6 1/2<<locked>>94%54,607 psi88%2835 fps100%
SNPE Vectan SP 10<<locked>>98%55,303 psi89%3130 fps96.9%
SNPE Vectan SP 3ᴾ<<locked>>100%54,201 psi87%3100 fps98.5%
Vihtavuori N110<<locked>>86%55,753 psi89%2936 fps100%
Vihtavuori N120<<locked>>96%55,767 psi89%3054 fps100%
Vihtavuori N130ᴾ<<locked>>100%50,676 psi81%2986 fps99.2%
Vihtavuori N133ᴾ<<locked>>100%43,903 psi70%2871 fps97.2%

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

Start Load - Barrel Length: 20"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%38,145 psi61%2713 fps96.9%
Accurate 2015<<locked>>94%37,550 psi60%2779 fps95.6%
Accurate 2460<<locked>>98%47,645 psi76%2979 fps95%
Accurate LT-30<<locked>>88%41,945 psi67%2779 fps95.2%
Accurate LT-32<<locked>>94%51,082 psi82%2943 fps95.3%
ADI AR 2205<<locked>>80%48,921 psi78%2831 fps100%
ADI AR 220718.1 gr80%33,388 psi54%2690 fps98.9%
ADI AR 221923 gr92%44,788 psi72%2959 fps95.7%
Alliant AR-Comp<<locked>>90%30,516 psi49%2671 fps95.4%
Alliant Reloder-10x<<locked>>86%33,373 psi54%2703 fps95.4%
Alliant Reloder-7<<locked>>80%34,780 psi56%2680 fps96.5%
Baschieri & Pellagri 106<<locked>>88%40,132 psi64%2753 fps95.1%
Hodgdon H322<<locked>>94%42,931 psi69%2923 fps95.1%
Hodgdon H335<<locked>>96%47,152 psi76%2992 fps95.1%
Hodgdon H4198<<locked>>88%46,412 psi74%2887 fps95.7%
Hodgdon TrailBoss<<locked>>80%22,336 psi36%1686 fps100%
IMR 4198<<locked>>80%30,269 psi49%2575 fps95%
IMR 4227<<locked>>80%40,886 psi66%2782 fps99.4%
Lovex D060<<locked>>80%49,371 psi79%2972 fps99.5%
Lovex S053<<locked>>80%40,176 psi64%2756 fps100%
Norma 20018.9 gr80%30,951 psi50%2628 fps95.3%
ReloadSwiss RS 14<<locked>>80%21,915 psi35%1719 fps100%
ReloadSwiss RS 36<<locked>>80%40,219 psi64%2802 fps99.2%
Shooters World Buffalo Rifle<<locked>>80%49,371 psi79%2972 fps99.5%
Shooters World SOCOM<<locked>>80%50,183 psi80%2936 fps99.8%
SNPE Vectan BA6 1/2<<locked>>80%37,231 psi60%2569 fps100%
SNPE Vectan SP 10<<locked>>94%48,341 psi78%3015 fps95.4%
SNPE Vectan SP 3<<locked>>90%39,305 psi63%2825 fps95.1%
Vihtavuori N110<<locked>>80%46,934 psi75%2808 fps100%
Vihtavuori N120<<locked>>80%33,591 psi54%2664 fps99.6%
Vihtavuori N130<<locked>>88%34,534 psi55%2671 fps95.6%
Vihtavuori N133<<locked>>96%38,827 psi62%2769 fps95.8%

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 32 powders for 5.56 x 45 NATO loaded with the .224 | 55gr | CutEdge MTH. ADI AR 2219 delivers the highest muzzle velocity at 3,140 fps; across all powders the maximum-charge window runs from 1,893 fps to 3,140 fps. Accurate 2015 gives the best case fill at 100 %, and 32 of the 32 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 49–90 %, leaving at least 10 % headroom. The 55.0 gr projectile in 0.224" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Alliant AR-Comp 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, Norma 200, ADI AR 2207 rank at the top here: for 5.56 x 45 NATO with the .224 | 55gr | CutEdge MTH 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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