The 6.5 Creedmoor crushes the 223 Remington in nearly every category. It has a flatter trajectory and more stopping power, making it the better rifle cartridge all around. Right?
Wrong. Although the 6.5 Creedmoor is more powerful, the 223 Rem hasn’t remained the golden child among American marksmen for so many decades because it’s so easily outclassed. It’s just better suited to other applications.
Continue reading to discover what each rifle cartridge does differently, and whether upgrading to the more powerful 6.5 Creedmoor is worth it!
Recoil
Most shooters agree that lighter recoil is better. The less recoil you experience, the more accurately you can shoot (with all other factors being equal). When shooting long-range matches or for extended periods, lighter recoil prevents fatigue. Also, the less your rifle beats against your shoulder, the less you will flinch and jerk the trigger while firing (i.e. recoil anticipation).
In terms of these two rounds’ recoil, there is no contest. The 6.5 Creedmoor generates between ~12 and ~19 ft-lbs of free recoil energy depending on rifle weight and ammo. In contrast, the 223 Rem has between ~3 and ~4 ft-lbs of free recoil energy.
Despite generating at least three times the recoil of the 223 Rem, the 6.5 Creedmoor is still manageable for the average shooter. That’s a large part of the reason why it’s become so popular over the last couple of decades.
Even so, recoil-sensitive shooters will prefer the gentler ignition of the 223 Rem.
Trajectory
Trajectory is how we quantify a bullet’s flight path as it travels downrange. It’s measured in several ways, but in this article, we use inches of bullet drop.
A flatter-shooting cartridge is preferred for longer ranges, as fewer adjustments are required to compensate for bullet drop. A flatter trajectory also means a cartridge is more forgiving of ranging mistakes.
Looking at the ballistics tables below, we see that a 223 Rem 55 grain CX bullet exhibits about -35" drop at 500 yards when zeroed at 300 yards. In contrast, a 6.5 Creedmoor 120 grain CX bullet exhibits about -28" drop at 500 yards when zeroed at 300 yards. The difference between the two rounds’ bullet drop increases even more dramatically over greater distances.
The 223 is well known for its flat trajectory and effective range of ~500 yards. The 6.5 Creedmoor offers shooters a much flatter trajectory, however, making it a preferred choice for long-distance shooting.
Accuracy
Many variables factor into a cartridge’s accuracy. The shooter, firearm, bullet, trajectory, recoil, and atmospheric conditions all significantly contribute to the determination of accuracy. For the sake of the argument, we’ll focus on trajectory and recoil and assume all other factors are as equal as possible.
Within 300 yards, the average shooter is more accurate with the 223 Rem due to its lower recoil. However, the poor trajectory of the 223 Rem past 500 yards means most shooters are more accurate using the 6.5 Creedmoor at longer distances.
Both cartridges are capable of extreme accuracy within the limits of their intended applications.
To get the most out of the 6.5 Creedmoor at distance, check out our guide to the best 6.5 Creedmoor ammo for accuracy.
Ballistic Coefficient
A bullet’s ballistic coefficient (BC) measures how well it resists wind drift and frontal air resistance. Put another way, it’s a numeric representation of a bullet’s aerodynamic properties. A higher BC is preferred because it is indicative of a bullet that cuts through the air more efficiently.
BC varies from bullet to bullet based on design, weight, and other factors that are beyond the scope of this article. Generally speaking, heavy bullets have a higher BC because it takes more force to disrupt the flight of a heavier bullet than it does a lighter one.
6.5 Creedmoor bullets have remarkably high ballistic coefficients than 223 Rem bullets. This is largely because the 6.5 Creedmoor fires bullets that can be twice heavier (or more) than the 223’s.
Some 6.5 Creedmoor bullets have BCs as high as 0.611. Most 6.5 Creedmoor bullets have a G1 BC between 0.428 and 0.646. Most 223 Rem bullets have a relatively low G1 BC, typically ranging between 0.202 and 0.362. The common 55 grain 223 Rem FMJ has a BC of 0.273.
6.5 Creedmoor bullets are much better at piercing the air and resisting wind drift, making them the better choice for long-range shooting.
Continue reading 6.5 Creedmoor vs. 223 Remington: Is a Flat Trajectory or Low Recoil Better? on Ammo.com
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