Thread: 260 Rem Neck up or Down

Originally Posted by 6x47

The only issue with necking down .308 to 7-08 is the necks end up short. They still work and shoot OK but there's the -possibility- of a carbon ring building up in the exposed neck region of the chamber. This would cause issues for later chambering of std length cases.

& down to 260 will make it even worse.

Not to mention Military cases are big & strong, they have limited internal capacity so pressures can get pretty high & if a slower powder is used it probably won't fit in....