What is the most accurate AR-15 caliber?

The most accurate AR-15 caliber is the .223/5.56 NATO round. It offers muzzle velocities of up to 3,250 feet per second and a ballistic coefficient of .243, making it an effective round for long-range shooting. It also has relatively low recoil compared to other rifle calibers, making it easier to shoot accurately.

The most accurate AR-15 caliber is .223 Remington. While other calibers may be more powerful, the smaller diameter of the .223 projectile results in greater accuracy at longer distances.
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The most accurate AR-15 caliber is the .223 Remington. It has the flattest trajectory and is less likely to deviate from the target than other calibers.

The most accurate AR-15 caliber is the .223 Remington. It has a 0.5 MOA accuracy when fired from a bench rest. Other accurate calibers include the 6.5 Creedmoor and the .308 Winchester.

There is no one “most accurate” AR-15 caliber, as there are many different types of AR-15 rifles that can be chambered in a variety of calibers. However, the most popular AR-15 calibers are .223 Remington and 5.56x45mm NATO.

There is no definitive answer to this question as different shooters prefer different calibers. That being said, the most popular AR-15 caliber is .223 Remington, followed by 5.56 NATO. Some shooters opt for larger calibers like .308 Winchester or 7.62x39mm, while others prefer smaller calibers like .22LR. Ultimately it comes down to personal preference.