Home CMMG Is 6.5 Creedmoor Really Better Than .308?

Is 6.5 Creedmoor Really Better Than .308?

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Today Joel shoots two almost identical Seekins SP10’s except one is chambered in 6.5 Creedmoor while the other is a .308! Shooting steel to 1000 yards to see which one comes out on top.

Military B-Roll segments, credit to Defense Vids Hub (open source)
6.5 x 55 schematics and a photo credit to Wikipedia (open source)

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30 COMMENTS

  1. A lot of idiots in the comments act like the 6.5 is the equivalent of a 22 mag and the 308 hits like a 454 casul. The 6.5 can do everything the 308 can and more, with less recoil. That's it. Deal with it. People are way too attached to caliber choice. Numbers don't lie. "you can load this and that to match it" "I've got 394957282 rounds of 308 it's way cheaper to shoot" surplus 308/7.62×51 doesn't hold a candle to generic 6.5 loads. You have to hand load to make 308 competitive. 6.5 in it's various forms has been around for a century. It isn't boutique. It isn't going anywhere. It's dropped thousands of moose and men alike. Face facts. That said….I have both and will use both this hunting season. Because this is fucking America

  2. At this point in the game I don’t think anybody is debating that the 6.5 Creedmoor is more efficient than the .308 Win. I appreciate the time and effort that went into this, but this test could have been a better apples to apples comparison. What ammunition was used? I saw both Federal GMM and Hornady ammunition present in the video. Bullet selection could tip the scales slightly, especially with some of the new VLD selections out there. Also, the .308 has a shorter barrel (looks like about 2 or 3 inches) than the 6.5 in the video, which will favor the 6.5 even more. Obviously none of what I just mentioned is going to change that the 6.5 is lighter recoiling and more efficient at distance, but it could mean that the .308 hangs with the 6.5 for another 50-100 yards. Still, thank you for the test, I certainly don’t have access to the rifles or range to do anything like this. Finally, what’s up with the reliability on the 6.5 gun? A couple of shots the case failed to eject. Did you get that sorted out?

  3. good comparison, I'll keep the 6.5 in mind but unless there's widespread adoption of the cartridge (say LE or military) the rounds are going to be a bit on the expensive side, with a 308 I know there's a lot of variety and anywhere that sells ammo will carry it; if in the future 6.5 is more prolific it'll certainly be worth a pick up though

  4. I gotta say it. Your ballistic tables for windage and drop are correct yes, but if your going to be comparing apples to apples make the initial muzzle velocity the same on the calculator. It might not seem much but when comparing the actual projectile in flight its very important to keep that a controlled variable.

  5. I have been preaching the virtues of the 6.5s since the 80s, now all of the sudden everyone else gets it too. Don't own a Creedmoor (yet) but the 6.5×55 has been my favorite hunting cartridge for a long long time now with only the 7mm-08 rivaling it for the perfect deer hunting cartridge. Hits hard enough to drop them in their tracks, kicks so little you can watch them drop through the scope.

  6. Didn't we already know 6.5 CM is more accurate round than 308? My only concern is the huge difference in cavity between those rounds against ballistic gel. I've seen couple tests, 308 created double the temp cavity 6.5 did. That to me is a big problem.

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