6.5CM ream to 260REM?

[MuzzleBlast]

Just out of curiosity, if I have a 6.5 Creedmoor AR10 barrel, would it be possible to ream it to 260 Remington?

 

[Roughedge]

No, The shoulder of the 6.5 is wider than the 260 so it would be gap in the new chamber. Just try to find a 260 barrel.

 

[MarkCO]

Why would you want to go from 6.5CM to .260 in an AR pattern?

While I prefer the .260 over the 6.5CM, the CM was largely a solution for magazine length issues in the AR patterns.

 

[T. O'Heir]

Creedmoor's case is slightly bigger than the Remington just about everywhere.

 

[MuzzleBlast]

Why would you want to go from 6.5CM to .260 in an AR pattern?

Just hypothetical if I already had a .260 bolt gun with all the dies and brass.
Got my answer, though.
Turns out X-Caliber makes .260 AR barrels for a good price.

 

[MarkCO]

Fair enough. When I had .260Rem in an AR pattern, I got the best results with the 123 and 130s.