Thread: best barrel length for a .308 ?

hi guys, I am planning on changing my rifle set up and rebarrel from 6.5fatso to .308.

what I would like to know what do you think will be the best barrel length for this? I have been thinking 22ich/20inch as I plan to use the rifle out to possibly 500yrds but also use it as a bush rifle so im kinda looking for a light weight all rounder but could also have a plan to fit a suppressor at a later date.

the base of the rifle is built on a Remington titanium short auction with a McMillan carbon stock and once the conversion is finished I will fit a leupold vx-3 4.5-14x50 milldot with a m1 turret.

I am open minded so let me know what you think and/or if there is a better calibre you think would work cheers!