Load data for .222 Rem. + .224 | 50gr | Hornady ECX

.222 Rem. cartridge drawing
Hornady logo

Load Specifications

Bullet Manufacturer:Hornady
Bullet Weight:50 gr
Bullet Diameter:0.224"
Bullet Length:<<locked>>
Case Length (l3):1.7"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:27.9 Grains of Water
Primer Size:Small Rifle (SR)
Barrel Length:24"
Max. allowed Pressure:53,664 psi
Recommended Twist Rate:1:10.5

Load data in caliber .222 Rem. with .224 | 50gr | Hornady ECX bullet and 24 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 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: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>90%46,499 psi87%3058 fps98.2%
ADI AR 2205<<locked>>82%48,240 psi90%3002 fps100%
ADI AR 2207<<locked>>94%46,412 psi86%3163 fps100%
ADI AR 2219<<locked>>98%48,370 psi90%3209 fps95.9%
Alliant AR-Compᴾ<<locked>>100%37,086 psi69%3028 fps97.5%
Alliant Reloder-10xᴾ<<locked>>100%46,586 psi87%3186 fps98.5%
Alliant Reloder-7<<locked>>92%46,282 psi86%3114 fps98.7%
Baschieri & Pellagri 106<<locked>>96%46,717 psi87%3051 fps96.2%
Hodgdon TrailBossᴾ<<locked>>100%30,284 psi56%1991 fps100%
IMR 4198<<locked>>98%46,209 psi86%3130 fps99%
IMR 4227<<locked>>88%47,413 psi88%3094 fps99.8%
Lovex D060<<locked>>82%48,443 psi90%3150 fps99.1%
Lovex D063<<locked>>82%46,978 psi88%3068 fps99.3%
Lovex S053<<locked>>88%46,325 psi86%3061 fps100%
Norma 200<<locked>>96%46,862 psi87%3173 fps99%
ReloadSwiss RS 14ᴾ<<locked>>100%29,617 psi55%2031 fps100%
ReloadSwiss RS 36<<locked>>88%47,007 psi88%3123 fps99.7%
Shooters World Buffalo Rifle<<locked>>82%48,443 psi90%3150 fps99.1%
Shooters World SOCOM<<locked>>82%46,978 psi88%3068 fps99.3%
SNPE Vectan BA6 1/2<<locked>>92%47,311 psi88%2920 fps100%
SNPE Vectan SP 3ᴾ<<locked>>100%45,527 psi85%3136 fps96.2%
Vihtavuori N110<<locked>>84%48,254 psi90%3031 fps100%
Vihtavuori N120<<locked>>96%46,108 psi86%3107 fps100%
Vihtavuori N130ᴾ<<locked>>100%44,019 psi82%3061 fps97.7%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>82%35,186 psi66%2825 fps95.3%
ADI AR 2205<<locked>>80%45,005 psi84%2949 fps100%
ADI AR 220717 gr80%29,675 psi55%2789 fps97.6%
ADI AR 2219<<locked>>96%45,672 psi85%3156 fps95.1%
Alliant AR-Comp<<locked>>96%32,692 psi61%2910 fps95.8%
Alliant Reloder-10x<<locked>>90%33,750 psi63%2904 fps95.1%
Alliant Reloder-7<<locked>>82%33,881 psi63%2838 fps95.7%
Baschieri & Pellagri 106<<locked>>94%43,642 psi81%2995 fps95.4%
Hodgdon TrailBoss<<locked>>80%21,872 psi41%1778 fps100%
IMR 4198<<locked>>86%32,982 psi61%2825 fps95.6%
IMR 4227<<locked>>80%37,507 psi70%2890 fps98.5%
Lovex D060<<locked>>80%45,107 psi84%3081 fps98.6%
Lovex D063<<locked>>80%43,642 psi81%3005 fps98.9%
Lovex S053<<locked>>80%36,216 psi67%2858 fps99.9%
Norma 20018.7 gr84%31,763 psi59%2838 fps95.3%
ReloadSwiss RS 14<<locked>>80%21,930 psi41%1831 fps100%
ReloadSwiss RS 3617.7 gr80%36,361 psi68%2904 fps98.1%
Shooters World Buffalo Rifle<<locked>>80%45,107 psi84%3081 fps98.6%
Shooters World SOCOM<<locked>>80%43,642 psi81%3005 fps98.9%
SNPE Vectan BA6 1/2<<locked>>80%33,910 psi63%2680 fps100%
SNPE Vectan SP 3<<locked>>98%42,888 psi80%3084 fps95.4%
Vihtavuori N110<<locked>>80%42,743 psi80%2940 fps100%
Vihtavuori N120<<locked>>80%27,963 psi52%2700 fps98.1%
Vihtavuori N130<<locked>>92%34,476 psi64%2851 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.

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This overview compares 24 powders for .222 Rem. loaded with the .224 | 50gr | Hornady ECX. ADI AR 2219 delivers the highest muzzle velocity at 3,209 fps; across all powders the maximum-charge window runs from 1,991 fps to 3,209 fps. Alliant AR-Comp gives the best case fill at 100 %, and 24 of the 24 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (370 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. Alliant AR-Comp, Alliant Reloder-10x, 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. Norma 200, ADI AR 2207, ReloadSwiss RS 36 rank at the top here: for .222 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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