This ^^^^ but do it to a Ruger Scout. The gun will never know the difference between .308 and .358, and you won't have any problems with feeding from the magazines.
Send it to JES to rebore and rifle. He knows exactly what to do. Just send the barreled action and you will be able to just bolt it all back together when it comes back. He'll make sure the headspace is correct and everything.
It should look about like this when done. Either Red Dot or Scope. You'll need the XS Scout Rail with integral Aperture Sight so you have back up sights... Make sure to Zero the Irons first, before installing the Optic.
Then you'd have a Proper Scout Rifle in .358 Win.
Randy