Load data for .223 Rem. + .224 | 50gr | Hornady ECX

.223 Rem. 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:24"
Max. allowed Pressure:55,000 psi
Recommended Twist Rate:1:10.5

Load data in caliber .223 Rem. with .224 | 50gr | Hornady ECX bullet and 26 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma 200, ADI AR 2207 and SNPE Vectan SP 3.

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 1680<<locked>>88%48,733 psi89%3156 fps99.2%
Accurate 2015ᴾ<<locked>>100%43,439 psi79%3143 fps97.7%
Accurate 2460ᴾ<<locked>>100%49,385 psi90%3255 fps96%
Accurate LT-30<<locked>>94%48,704 psi89%3146 fps97.3%
ADI AR 2207<<locked>>92%47,210 psi86%3225 fps100%
ADI AR 2219<<locked>>96%49,501 psi90%3297 fps97.3%
Alliant AR-Compᴾ<<locked>>100%40,509 psi74%3173 fps99.2%
Alliant Reloder-10x<<locked>>98%47,297 psi86%3251 fps99.2%
Alliant Reloder-7<<locked>>90%46,601 psi85%3173 fps99.3%
Baschieri & Pellagri 106<<locked>>94%47,442 psi86%3123 fps97.4%
Hodgdon H322<<locked>>98%47,543 psi86%3261 fps96.9%
Hodgdon H335<<locked>>98%48,965 psi89%3274 fps96.1%
Hodgdon H4198<<locked>>90%47,979 psi87%3153 fps96.4%
Hodgdon TrailBossᴾ<<locked>>100%30,240 psi55%2041 fps100%
IMR 4198<<locked>>96%46,688 psi85%3196 fps99.6%
IMR 4227<<locked>>86%47,950 psi87%3159 fps100%
Lovex S053<<locked>>88%48,834 psi89%3150 fps100%
Norma 200<<locked>>94%47,413 psi86%3238 fps99.6%
ReloadSwiss RS 14ᴾ<<locked>>100%30,008 psi55%2090 fps100%
ReloadSwiss RS 36<<locked>>86%47,152 psi86%3179 fps99.9%
SNPE Vectan BA6 1/2<<locked>>90%47,558 psi86%2969 fps100%
SNPE Vectan SP 3<<locked>>98%48,936 psi89%3261 fps98%
Vihtavuori N110<<locked>>82%48,283 psi88%3071 fps100%
Vihtavuori N120<<locked>>92%47,413 psi86%3176 fps100%
Vihtavuori N130ᴾ<<locked>>100%49,066 psi89%3205 fps99.2%
Vihtavuori N133ᴾ<<locked>>100%42,424 psi77%3077 fps97.3%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%36,941 psi67%2917 fps97%
Accurate 2015<<locked>>94%35,781 psi65%2976 fps95.6%
Accurate 2460<<locked>>98%45,426 psi83%3182 fps95%
Accurate LT-30<<locked>>88%40,582 psi74%2986 fps95.2%
ADI AR 220718.7 gr80%31,937 psi58%2897 fps98.9%
ADI AR 2219<<locked>>92%43,294 psi79%3173 fps95.8%
Alliant AR-Comp<<locked>>90%29,298 psi53%2867 fps95.5%
Alliant Reloder-10x<<locked>>86%32,140 psi58%2913 fps95.5%
Alliant Reloder-7<<locked>>80%33,779 psi61%2890 fps96.6%
Baschieri & Pellagri 106<<locked>>88%38,870 psi71%2953 fps95.2%
Hodgdon H322<<locked>>94%41,582 psi76%3136 fps95.2%
Hodgdon H335<<locked>>96%45,832 psi83%3215 fps95.3%
Hodgdon H4198<<locked>>88%44,976 psi82%3097 fps95.7%
Hodgdon TrailBoss<<locked>>80%21,915 psi40%1827 fps100%
IMR 4198<<locked>>82%30,879 psi56%2822 fps95.8%
IMR 4227<<locked>>80%39,537 psi72%2992 fps99.4%
Lovex S053<<locked>>80%38,377 psi70%2956 fps100%
Norma 20019.6 gr80%29,805 psi54%2831 fps95.5%
ReloadSwiss RS 14<<locked>>80%21,901 psi40%1877 fps100%
ReloadSwiss RS 36<<locked>>80%39,102 psi71%3018 fps99.2%
SNPE Vectan BA6 1/2<<locked>>80%35,824 psi65%2762 fps100%
SNPE Vectan SP 321.3 gr90%37,826 psi69%3028 fps95.1%
Vihtavuori N110<<locked>>80%44,991 psi82%3015 fps100%
Vihtavuori N120<<locked>>80%32,155 psi58%2867 fps99.6%
Vihtavuori N130<<locked>>88%33,286 psi61%2871 fps95.6%
Vihtavuori N133<<locked>>96%37,173 psi68%2963 fps95.7%

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 26 powders for .223 Rem. loaded with the .224 | 50gr | Hornady ECX. ADI AR 2219 delivers the highest muzzle velocity at 3,297 fps; across all powders the maximum-charge window runs from 2,041 fps to 3,297 fps. Accurate 2015 gives the best case fill at 100 %, and 26 of the 26 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (379 MPa), the top charges use 55–90 %, 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, 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. Norma 200, ADI AR 2207, SNPE Vectan SP 3 rank at the top here: for .223 Rem. with the .224 | 50gr | Hornady ECX 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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