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Old 10-23-2010, 09:12 PM
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aom22
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6.5 Creedmore Addresses the OAL Limitations of the .260 REM

Quote:
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?
Quote:
Put simply, the 6.5 Creedmoor is what the .260 Remington should have been.
260 Rem vs. 6.555
Quote:
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
Quote:
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
Quote:
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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