Load data for 5.56 x 45 NATO + .224 | 50gr | Hornady CX

5.56 x 45 NATO cartridge drawing
Hornady logo

Load Specifications

Bullet Manufacturer:Hornady
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:1:10.5

Load data in caliber 5.56 x 45 NATO with .224 | 50gr | Hornady CX bullet and 29 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2207, Norma 200 and ReloadSwiss RS 36.

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>>92%55,782 psi89%3156 fps99.4%
Accurate 2015ᴾ<<locked>>100%43,598 psi70%3022 fps96.5%
Accurate LT-30<<locked>>98%55,666 psi89%3146 fps97.5%
ADI APS 450<<locked>>82%55,985 psi90%2484 fps100%
ADI AR 2205<<locked>>84%53,534 psi86%3035 fps100%
ADI AR 2207<<locked>>96%53,592 psi86%3212 fps100%
ADI AR 2219<<locked>>98%53,185 psi85%3235 fps96.8%
Alliant AR-Compᴾ<<locked>>100%40,654 psi65%3048 fps98.3%
Alliant Reloder-10xᴾ<<locked>>100%50,792 psi81%3192 fps98.9%
Alliant Reloder-7<<locked>>96%56,202 psi90%3219 fps99.7%
Baschieri & Pellagri 106<<locked>>98%53,867 psi86%3114 fps97.6%
Hodgdon H322ᴾ<<locked>>100%50,415 psi81%3189 fps96.2%
Hodgdon H4198<<locked>>94%54,186 psi87%3146 fps96.6%
Hodgdon TrailBossᴾ<<locked>>100%30,298 psi49%1982 fps100%
IMR 4198ᴾ<<locked>>100%52,736 psi85%3186 fps99.6%
IMR 4227<<locked>>90%54,346 psi87%3153 fps100%
Lovex D060<<locked>>84%54,027 psi87%3192 fps99.6%
Lovex S053<<locked>>92%55,085 psi88%3143 fps100%
Norma 200<<locked>>98%53,722 psi86%3225 fps99.6%
ReloadSwiss RS 14ᴾ<<locked>>100%30,081 psi48%2031 fps100%
ReloadSwiss RS 36<<locked>>90%53,940 psi86%3179 fps100%
Shooters World Buffalo Rifle<<locked>>84%54,027 psi87%3192 fps99.6%
Shooters World SOCOM<<locked>>84%55,825 psi90%3159 fps99.9%
SNPE Vectan BA6 1/2<<locked>>96%55,738 psi89%2992 fps100%
SNPE Vectan SP 3ᴾ<<locked>>100%51,837 psi83%3192 fps97.5%
Vihtavuori N110<<locked>>86%54,172 psi87%3058 fps100%
Vihtavuori N120<<locked>>96%53,635 psi86%3163 fps100%
Vihtavuori N130ᴾ<<locked>>100%48,617 psi78%3081 fps98.4%
Vihtavuori N133ᴾ<<locked>>100%42,061 psi67%2953 fps95.9%

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

Start Load - Barrel Length: 20"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%36,550 psi59%2792 fps95.6%
Accurate 2015<<locked>>98%40,712 psi65%2966 fps95.7%
Accurate LT-30<<locked>>92%45,818 psi73%2976 fps95.4%
ADI APS 450<<locked>>80%53,751 psi86%2451 fps100%
ADI AR 2205<<locked>>80%47,558 psi76%2943 fps100%
ADI AR 220718.7 gr80%32,024 psi51%2779 fps97.9%
ADI AR 2219<<locked>>94%45,832 psi73%3100 fps95%
Alliant AR-Comp<<locked>>94%33,127 psi53%2858 fps95.6%
Alliant Reloder-10x<<locked>>90%36,564 psi59%2900 fps95.7%
Alliant Reloder-7<<locked>>80%33,417 psi54%2762 fps95.1%
Baschieri & Pellagri 106<<locked>>92%44,193 psi71%2946 fps95.4%
Hodgdon H322<<locked>>98%47,108 psi76%3123 fps95.4%
Hodgdon H4198<<locked>>90%47,500 psi76%3028 fps95.1%
Hodgdon TrailBoss<<locked>>80%21,944 psi35%1772 fps100%
IMR 4198<<locked>>84%32,692 psi52%2756 fps95.1%
IMR 4227<<locked>>80%39,682 psi64%2884 fps98.7%
Lovex D060<<locked>>80%47,993 psi77%3081 fps98.9%
Lovex S053<<locked>>80%38,464 psi62%2851 fps99.9%
Norma 20020.5 gr84%33,895 psi54%2822 fps95.6%
ReloadSwiss RS 14<<locked>>80%21,930 psi35%1821 fps100%
ReloadSwiss RS 3619.4 gr80%38,711 psi62%2894 fps98.4%
Shooters World Buffalo Rifle<<locked>>80%47,993 psi77%3081 fps98.9%
Shooters World SOCOM<<locked>>80%48,283 psi77%3038 fps99.4%
SNPE Vectan BA6 1/2<<locked>>80%35,911 psi58%2674 fps100%
SNPE Vectan SP 3<<locked>>94%42,873 psi69%3022 fps95.3%
Vihtavuori N110<<locked>>80%45,092 psi72%2920 fps100%
Vihtavuori N120<<locked>>80%32,242 psi52%2753 fps98.9%
Vihtavuori N130<<locked>>90%35,694 psi57%2812 fps95%
Vihtavuori N133<<locked>>98%39,334 psi63%2894 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 49 powders for 5.56 x 45 NATO loaded with the .224 | 50gr | Hornady CX. ADI AR 2219 delivers the highest muzzle velocity at 3,235 fps; across all powders the maximum-charge window runs from 1,982 fps to 3,235 fps. Accurate 2015 gives the best case fill at 100 %, and 49 of the 49 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 48–90 %, leaving at least 10 % headroom. The 50.0 gr projectile in 0.224" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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 2207, Norma 200, ReloadSwiss RS 36 rank at the top here: for 5.56 x 45 NATO with the .224 | 50gr | Hornady CX they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2460, Accurate 2495, Accurate 2520 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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