22 ARC vs 223 comes down to bullet weight and what happens past 300 yards. Both fire .224-inch bullets from an AR15, but the 22 ARC uses a fatter case with a larger case head, designed around long 62 to 88 gr bullets, while the 223 Remington is at home with 40 to 77 gr bullets. Chattahoochee Munitions manufactures the CM15 22 ARC AR15 in 16, 18 and 20-inch barrels, a CM15 22 ARC upper that fits a standard AR15 lower, and the CM7S 22 ARC bolt action in 12.5 and 18 inches.
22 ARC vs 223 at a Glance
| 22 ARC | 223 Remington | |
|---|---|---|
| Bullet diameter | .224 inch | .224 inch |
| Case head | .441 inch (6.5 Grendel family) | .378 inch |
| Maximum cartridge length | 2.260 inch | 2.260 inch |
| SAAMI maximum average pressure | 52,000 psi | 55,000 psi |
| Typical bullet weights | 62 to 88 gr | 40 to 77 gr |
| AR15 parts | Own barrel, bolt and magazine | Standard 223/5.56 parts |
| Same AR15 lower receiver | Yes | Yes |
SAAMI accepted the 22 ARC for standardization in 2024, introduced by Hornady with a 75 gr bullet at 3,075 fps and a 52,000 psi maximum average pressure (SAAMI announcement).
22 ARC vs 223 Ballistics
The table compares two published factory loads from 24-inch test barrels: Hornady’s 88 gr ELD Match in 22 ARC (2,820 fps) and Hornady’s 55 gr V-MAX in 223 Remington (3,240 fps). Downrange values are Chattahoochee Munitions calculations with a 200-yard zero, standard atmosphere and a 10 mph full-value crosswind.
| Range | 22 ARC 88 gr: energy / drop / wind | 223 Rem 55 gr: energy / drop / wind |
|---|---|---|
| Muzzle | 1,554 ft-lb | 1,282 ft-lb |
| 300 yd | 1,066 ft-lb / -7.3 in / 5.6 in | 568 ft-lb / -7.1 in / 11.1 in |
| 400 yd | 933 ft-lb / -21.1 in / 10.2 in | 419 ft-lb / -21.7 in / 21.3 in |
| 500 yd | 813 ft-lb / -42.1 in / 16.5 in | 304 ft-lb / -46.5 in / 35.9 in |
In this 22 ARC vs 223 comparison, drop is close, because the 223 starts faster. The difference is wind and retained energy: at 500 yards the 22 ARC carries about 2.7 times the energy and drifts less than half as far. That is what the long, high ballistic coefficient bullets do, and the 22 ARC case has the capacity to push them at useful speed. Your barrel length will change the numbers; see 22 ARC ballistics for 12.5 to 20-inch barrels.
Why 223 Struggles With Heavy Bullets
A 223 Remington can fire 77 to 80 gr bullets, but those long bullets must be seated deep to fit the 2.260-inch magazine length, which takes up powder space in a small case. The 22 ARC uses a shorter, wider case so a long bullet fits within the same AR15 magazine length without giving up as much powder room.
What Changes in the AR15
In the 22 ARC vs 223 parts question, moving from 223 to 22 ARC keeps the AR15 lower receiver, trigger, stock and grip. Every CM15 uses a TriggerTech AR15 Duty trigger at 3.5 lb, and that stays the same. It changes three parts:
- Barrel: a 22 ARC chamber. Chattahoochee Munitions CM15 barrels are 416R stainless, straight-fluted, 1:7 twist, with E100 Blackout Cerakote.
- Bolt: sized for the .441-inch case head, the same family as the 6.5 Grendel and 6mm ARC.
- Magazine: a 6.5 Grendel, 6mm ARC and 22 ARC pattern magazine. A 223 magazine will not feed the fatter case. See the CM15 22 ARC AR15 magazine.
The CM15 22 ARC upper includes the barrel and gas system, with an optional low-mass bolt carrier group, so an existing AR15 lower can run 22 ARC with a 22 ARC magazine.
Recoil and Ammunition Cost
On recoil, 22 ARC vs 223 is close; both are mild. The 22 ARC fires heavier bullets and more powder, so it recoils a little more than a 55 gr 223 load, but far less than a 6.5 Grendel or 308 Winchester. The 223 wins on ammunition price and on the range of loads on the shelf. The 22 ARC has fewer factory loads, centered on 62, 75 and 88 gr bullets.
22 ARC vs 223 for Hunting
For hunting, 22 ARC vs 223 is about range and bullet weight.
- Coyotes and varmints: both work inside 300 yards. Past that, the 22 ARC’s wind resistance makes hits easier. See 22 ARC for coyotes and hogs.
- Deer: some states restrict .22 centerfire for deer. Where it is legal, the 22 ARC’s heavier bullets carry more energy. See 22 ARC for deer.
Which Should You Choose?
Choose 223 for cheap practice, the widest ammunition choice and parts that fit every standard AR15. Choose 22 ARC to reach 400 to 600 yards with less wind drift from the same lower receiver, or to shoot a short-action bolt gun. 22 ARC vs 223 is not about which cartridge is faster at the muzzle; it is about how much of that speed the bullet keeps.
22 ARC Firearms From Chattahoochee Munitions
- CM15 22 ARC AR15, 16-inch
- CM15 22 ARC DMR, 18-inch
- CM15 22 ARC predator rifle, 20-inch
- CM15 22 ARC upper, 16-inch
- CM7S 22 ARC bolt action rifle, 18-inch
See every configuration in Flight Deck 22. For the 5.56 NATO side, see Garrison 5.56.
Related 22 ARC Guides
22 ARC vs 223 FAQ
Is 22 ARC better than 223?
For long-range hits and wind, yes: its 88 gr bullet keeps far more energy at 500 yards. For cheap ammunition and parts compatibility, 223 is the easier choice.
Can I use a 223 lower for 22 ARC?
Yes. A standard AR15 lower works. You need a 22 ARC barrel, bolt and magazine, or a complete 22 ARC upper.
Do 223 magazines work with 22 ARC?
No. The 22 ARC case is wider. Use a 6.5 Grendel, 6mm ARC and 22 ARC pattern magazine.
Does 22 ARC use the same bolt as 223?
No. It uses a bolt for the .441-inch case head, the same family as the 6.5 Grendel.
Is 22 ARC faster than 223?
With light bullets, the 62 gr 22 ARC load is published at 3,300 fps from a 24-inch barrel. Its main advantage is heavy bullets at useful speed.
What is the 22 ARC vs 223 recoil difference?
Small. The 22 ARC recoils slightly more than a light 223 load and well below a 6.5 Grendel.
Who makes a 22 ARC AR15?
Chattahoochee Munitions manufactures the CM15 22 ARC AR15 in 16, 18 and 20-inch barrels, with 1:7 twist 416R stainless barrels and a TriggerTech AR15 Duty trigger, plus a 16-inch CM15 22 ARC upper.