Load data for 5.56 x 45 NATO + .224 | 50gr | MEN FMJ

5.56 x 45 NATO cartridge drawing
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Load Specifications

Bullet Manufacturer:MEN
Bullet Weight:50 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:1:7.0

Load data in caliber 5.56 x 45 NATO with .224 | 50gr | MEN FMJ bullet and 27 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 36, ADI AR 2207 and Alliant Reloder-7.

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>>94%55,071 psi88%3097 fps98.8%
Accurate 5744<<locked>>84%54,143 psi87%3143 fps99.2%
Accurate LT-30ᴾ<<locked>>100%54,781 psi88%3081 fps96.5%
Accurate No. 11 FS<<locked>>82%53,650 psi86%3077 fps100%
ADI APS 450<<locked>>82%55,013 psi88%2418 fps100%
ADI AR 2205<<locked>>86%53,954 psi87%2999 fps100%
ADI AR 2207ᴾ<<locked>>100%56,159 psi90%3215 fps100%
Alliant AR-Compᴾ<<locked>>100%37,072 psi59%2910 fps96.1%
Alliant Reloder-10xᴾ<<locked>>100%46,485 psi75%3071 fps97.6%
Alliant Reloder-7<<locked>>98%55,564 psi89%3163 fps99.3%
Baschieri & Pellagri 106ᴾ<<locked>>100%53,330 psi86%3061 fps96.6%
Hodgdon TrailBossᴾ<<locked>>100%30,226 psi48%1939 fps100%
IMR 4198ᴾ<<locked>>100%48,805 psi78%3071 fps98.7%
IMR 4227<<locked>>92%54,027 psi87%3104 fps99.9%
Lovex D060<<locked>>86%54,143 psi87%3143 fps99.2%
Lovex D063<<locked>>86%55,521 psi89%3107 fps99.7%
Lovex S053<<locked>>94%54,752 psi88%3097 fps100%
Norma 200ᴾ<<locked>>100%53,243 psi85%3173 fps99.2%
ReloadSwiss RS 14ᴾ<<locked>>100%29,544 psi47%1975 fps100%
ReloadSwiss RS 36<<locked>>94%56,376 psi90%3173 fps99.9%
Shooters World Blackout<<locked>>82%54,476 psi87%3120 fps99.3%
Shooters World Buffalo Rifle<<locked>>86%54,143 psi87%3143 fps99.2%
Shooters World SOCOM<<locked>>86%55,521 psi89%3107 fps99.7%
SNPE Vectan BA6 1/2<<locked>>98%55,056 psi88%2943 fps100%
Vihtavuori N110<<locked>>88%54,404 psi87%3022 fps100%
Vihtavuori N120ᴾ<<locked>>100%56,173 psi90%3163 fps100%
Vihtavuori N130ᴾ<<locked>>100%44,817 psi72%2966 fps96.9%

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

Start Load - Barrel Length: 20"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>84%39,740 psi64%2818 fps95.7%
Accurate 5744<<locked>>80%47,703 psi76%3028 fps98.3%
Accurate LT-30<<locked>>96%48,950 psi78%2982 fps95.2%
Accurate No. 11 FS<<locked>>80%49,951 psi80%3022 fps100%
ADI APS 450<<locked>>80%53,374 psi86%2395 fps100%
ADI AR 2205<<locked>>80%44,947 psi72%2854 fps100%
ADI AR 220717 gr80%29,617 psi47%2677 fps96.4%
Alliant AR-Comp<<locked>>98%35,027 psi56%2858 fps95.3%
Alliant Reloder-10x<<locked>>94%38,450 psi62%2907 fps95.5%
Alliant Reloder-718.5 gr84%35,795 psi57%2782 fps95.1%
Baschieri & Pellagri 106<<locked>>96%46,644 psi75%2946 fps95%
Hodgdon TrailBoss<<locked>>80%21,785 psi35%1729 fps100%
IMR 4198<<locked>>88%34,809 psi56%2769 fps95%
IMR 4227<<locked>>80%37,420 psi60%2789 fps97.6%
Lovex D060<<locked>>80%45,136 psi72%2976 fps97.8%
Lovex D063<<locked>>80%45,542 psi73%2940 fps98.6%
Lovex S053<<locked>>80%36,216 psi58%2762 fps99.6%
Norma 200<<locked>>88%36,056 psi58%2838 fps95.6%
ReloadSwiss RS 14<<locked>>80%21,857 psi35%1778 fps100%
ReloadSwiss RS 3617.7 gr80%36,318 psi58%2795 fps97.1%
Shooters World Blackout<<locked>>80%50,691 psi81%3058 fps98.9%
Shooters World Buffalo Rifle<<locked>>80%45,136 psi72%2976 fps97.8%
Shooters World SOCOM<<locked>>80%45,542 psi73%2940 fps98.6%
SNPE Vectan BA6 1/2<<locked>>80%33,823 psi54%2595 fps100%
Vihtavuori N110<<locked>>80%42,656 psi68%2841 fps100%
Vihtavuori N120<<locked>>80%29,892 psi48%2654 fps97.7%
Vihtavuori N130<<locked>>96%39,943 psi64%2867 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.

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

This overview compares 27 powders for 5.56 x 45 NATO loaded with the .224 | 50gr | MEN FMJ. ADI AR 2207 delivers the highest muzzle velocity at 3,215 fps; across all powders the maximum-charge window runs from 1,939 fps to 3,215 fps. Accurate LT-30 gives the best case fill at 100 %, and 27 of the 27 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 47–90 %, leaving at least 10 % headroom. The 50.0 gr projectile in 0.224" calls for a 1:7.0 twist; slower twists will usually not stabilise this weight. Accurate LT-30, ADI AR 2207, 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. ReloadSwiss RS 36, ADI AR 2207, Alliant Reloder-7 rank at the top here: for 5.56 x 45 NATO with the .224 | 50gr | MEN FMJ 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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