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Ussocom Adopts 6.5Mm Creedmoor Cartridge


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#21 JW Collins

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Posted 26 May 2019 - 1854 PM

Why was 6.5mm Creedmoor decided upon over .260 Remington? Seems like the latter cartridge has space for more powder.

Is 6.8x51mm the latest caliber for the cased-telescoped ammunition they've been toying with for some time now?
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#22 JamesR

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Posted 26 May 2019 - 2138 PM

Why was 6.5mm Creedmoor decided upon over .260 Remington? Seems like the latter cartridge has space for more powder.

 

 

6.5 Creedmoors shoulder is pushed back a little and has a slightly longer neck.. allowing it to have a little shorter overall length which allows it to fit better in an ar10 mag with heavier bullets.... which would be moot in a belt fed config.

 

the 260, 6.5 creedmoor, and the 6.5*47 lapua are all nearly identical in performance.  The 260 can be a tad faster and the 47 is a biy slower but honestly the difference is negligible.  Where they differ the most is how Hornady is promoting the creedmoor, Remington completely ignored the 260 after releasing it, and Lapua designed theirs to be a 300m target round and never did anything further to promote it (except for making awesome small primer brass).


Edited by JamesR, 26 May 2019 - 2139 PM.

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#23 Simon Tan

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Posted 26 May 2019 - 2342 PM

All Lapua brass is awesome and you have to fend off the gannets on range. I hates them.
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#24 Panzermann

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Posted 28 May 2019 - 1838 PM

Why was 6.5mm Creedmoor decided upon over .260 Remington? Seems like the latter cartridge has space for more powder.

Is 6.8x51mm the latest caliber for the cased-telescoped ammunition they've been toying with for some time now?


No, this time it is a normal cartridge with the bullet sticking out. From the photos it ölooks pretty much like a .308 Win case with a 6.8 bullet. But hard to say without measuring it.


The telescoped one is another cartridge also in development. At the moment the US Army really is looking into all directions.
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