7prc build question

[RuttyRizzler]

I have an AGcomposite k2 w a rem varmint barrel channel. I've been looking at barrel options and found a prefit. Would a proof research Sendero barrel fit in this varmint barrel channel or would it require some sanding?

 

[tobnpr]

You need to call Proof.
Cylinder/breech of their barrel looks to be .400 longer than the Rem contour- sanding won't take care of that, it'd need to be opened up on a mill. The rest looks heavier as well, depends on length of the stock forend- sanding might do it.
700 Sendero= .830 at the muzzle for a 26" barrel
Proof "" = .914 "" "" "" "" "" ""