Stock interchangeable?

[RightPlace-RightTime]

Stock form a .308 able to go on 7mm?

[Blacktail Sniper]

A little more info will be needed.

Rifle make and which 7mm.

[MeatMissile]

Yeah, we will need more details.  Some rifles have long and short actions, different barrel contours, bottom metal, etc. Many models will be short actions for 308, and depending which 7mm, could be short, long, or magnum length.

[hunter399]

A little more info will be needed.

Rifle make and which 7mm.

Yup