The 308 cartridges have worked well for various hunters over the years. The .308 Winchester has been around for a long time and earned a well-deserved reputation as an effective cartridge for many games.

However, the recent strong development of 6.5 Creedmoor has left hunters and gunsmiths, even the oddball ones. So, 6.5 Creedmoor vs. 308: which is better?

We believe that 6.5 Creedmoor and the .308 Winchester are excellent cartridges, but knowing their differences will allow you to choose the suitable one.

Detailed Comparison 6.5 Creedmoor vs. 308

Cartridge Sizes

6.5 Creedmoor
6.5 Creedmoor

Both 308 and 6.5 CM cartridges are used in short-action rifles. That’s why they have similar external dimensions.

The case length of the .308 is a bit longer than 6.5 (2.015″ and 1.92″), but the overall length is shorter (2.81″ and 2.825″). The 6.5 cartridge features a sharper shoulder angle and is slightly less tapered than its .308 counterpart.

Both cartridges feature a .473″ rim diameter, allowing them to hold the same amount of powder and have the same maximum average pressure of 62,000psi.

Weight

Grain weight of the ammo that the 308 and 6.5 CM fire is probably the most significant difference between the two types.

6.5 CM was initially designed for competition shooting at long ranges, so it utilizes longer and sustained bullets.

The grain weight range for the Creedmoor cartridge is quite vast, from 90 to 160 grain. Here are the standard grain weights for 6.5 CM:

  • 143 Grain
  • 140 Grain
  • 129 Grain
  • 120 Grain

Recoil 

The less recoil you have, the better you shoot. The recoil results from many different factors and is partly related to the cartridge you are using.

The factor that most significantly affects the recoil you get is your gun. So it would be incorrect to compare the recoil between two cartridges directly if you don’t have the same firearm with a different chamber.

According to skilled hunters, 6.5 CM tends to be less recoil across the board.

Barrel Life

The 308 Winchester
The 308 Winchester

The 6.5 and the 308 have the same case capacity, but throat erosion tends to occur faster for 6.5 cartridges as it utilizes a smaller barrel.

Exactly how fast barrel erosion occurs will depend on a few factors, such as the barrel quality and the exact ammunition used.

It can be a significant problem with serious target shooters. But fortunately, the average lifespan of a 6.5 Creedmoor barrel ranges from 2,000 to 3,000 rounds, more than enough for it to last for several years.

So when it comes to the barrel life, there is no difference between the two.

Power & Range

The .308 and 6.5 CM give you an effective range of up to 1,000 meters or more. But 6.5 CM rounds tend to outperform.

The 6.5 CM ring has less recoil and allows you to double your hit probability at a distance of one kilometer. It also has about 30% more power on targets in the one-kilometer range.

Ammunition Selection

The 308 cartridge is popular in the shooting and hunting world in the United States. It even entered the list of best-selling cartridges in this country.

Although 6.5 Creedmoor has not yet achieved the same popularity due to its later release, it has also grown in popularity over time.

But will 6.5 CM become as widespread and famous as the .308 Winchester? Let time answer!

Availability and Price

The availability and price between the two may vary depending on the region, but ammo for both magazines is very common.

However, the .308 tends to be a bit easier to buy and cheaper than the 6.5 CM.

Most of the major bullet styles made for hunting are available in these cartridges.

  • Berger VLD
  • Barnes TTSX
  • GMX
  • InterLock
  • Hornady ELD-X
  •  Nosler AccuBond
  • Ballistic Tip
  • E-Tip
  • Partition
  • Remington Core Lokt
  • Winchester Powerpoint.

Rifle Selection

In addition to a vast number of bullet options available in those cartridges, various good-quality rifles are made for the .308 Winchester and 6.5 CM cartridges.

The .308 rifles are more common, although 6.5 Creedmoor rifles are not uncommon. Here are some guns available for both cartridges:

  • FTW Hunter
  • Remington Model 700
  • Nosler M48
  • Browning X-Bolt
  • Weatherby Vanguard
  • Mossberg Patriot
  • Savage Avis

Usage of Bullets

The 308 is one of the most common hunt bullets in existence. You can find them at every local ammo store to buy in bulk. You can also find them from online retailers like OpticsPlanet or Palmetto State Armory.

While the 6.5 CM is less common and more challenging to find than the 308 Winchester, it’s not tough. You can also find them at local stores or online retailers like OpticsPlanet and Palmetto State Armory.

6.5 CM vs. 308: Comparison Table

The 308 Winchester  The 6.5 Creedmoor
Bullet Diameter .308″ .264″
Case Length 2.015″ 1.92″
Maximum Overall Length 2,81″ 2,825″
Rim Diameter .473” .473”
Case Capacity 53,5gr H2O 52,5gr H2O
Maximum Pressure 62,000psi. 62,000psi.
Best For Thin-skinned hunting games, such as mule deer,  blacktail deer,  fallow deer, whitetail deer, and pronghorn

6.5 Creedmoor vs. 308: Which Is Right for You?

Both 308 Winchester and 6.5 CM cartridges work well for the deer hunting game
Both 308 Winchester and 6.5 CM cartridges work well for the deer hunting game

Both 308 Winchester and 6.5 CM cartridges work well for thin-skinned hunting games, such as mule deer,  blacktail deer,  fallow deer, and whitetail deer.

While these cartridges are ideal for hunting deer-sized games, they also work for bigger games under the right conditions.

They are suitable for hunting elk and moose at reasonable ranges. Also, these cartridges are good picks for hunting many species of African plains games.

Both work well for medium-sized hunting games like black bears, feral hogs, and deers within two hundred yards.

There’s not much difference between them in this case, but we recommend .308 if you prefer the easiest to find and cheapest ammo.

At longer distances, you should go with the 6.5 CM as it features a flatter trajectory, better wind resistance, and carries enough power over distances from 400 to 500.

If you prefer semi-automatic rifles for hunting or battle rifles for personal defense, you can’t go wrong with the .308 Winchester since various quality rifles are available for this cartridge.

Finally, the 6.5 CM is your best bet if you’re a recoil-sensitive shooter. It is ideal for new, recoil-shy, and small-framed hunters.

One good rifle chambered in the 6.5 CM is an excellent present for a shooter or hunter who is getting started.

The Bottom Line

Through this article, you have understood the difference between the 6.5 CM and the 308 Winchester and choose something that works best for you.

The .308 Winchester and 6.5 CM cartridges are both excellent. The difference between the two is quite significant in some respects, but one is not “better” than the other.

As a hunter, you should carefully consider every aspect to make the final decision. Thanks for stopping by!

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