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Old 10-23-2010, 09:12 PM
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6.5 Creedmore Addresses the OAL Limitations of the .260 REM

Originally Posted by Ron AKA View Post
The one issue I would wonder a bit about is the OAL of a 260 in a short action.
Some of those high BC low drag bullets can be very long.

I wonder how far back into the cartridge you would have to seat them
_to get them to fit the magazine, if you don't want to go single shot.
The .260 REM cannot properly seat the longest, highest BC 6.5mm bullets
_because of over-all-length limitations.
The very long bullets that can be used must be seated deep into the .260 REM case.
Resulting in reduced case capacity and/or a compressed load.

The 6.5 Creedmore was engineered to address over-all-length limitations imposed
_by very long bullets in a short-action and still function in a .308 WIN magazine.

6.5 Creedmoor - .260 Done Right?
Put simply, the 6.5 Creedmoor is what the .260 Remington should have been.
260 Rem vs. 6.555
the .260s, even more in practice when both are loaded to standard COALs
_with heavy bullets, which sees them having to seated very deep
_in the .260 Rem using up quite a lot of powder capacity.
Accuracy Aces
The 6.5 Creedmoor's case is 1.920 inches, which is slightly shorter than the .260 Rem. case,
_but it's a bit longer than the 6.5x47 Lapua case.
Case capacity is 53.0 grains of water.

According to the folks at Hornady, the shorter case length was designed
_to avoid overall length issues when combining long, pointy bullets
_and short, .308 Win.-length magazine boxes.
The real truth about the new 6.5 Creedmoor v/s the .308
Actually, the Creedmore will do one thing the 260 won't.

The dimensions of the cartridge allow one to seat a 140 without
_the base of the bullet extending below the neck/shoulder junction
_and still feed from a standard 308 length box magazine.

There is some indication that this should increase accuracy.
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