I can't comment on the Vanguard but I do have the 25-06 in the Remington Sendero version (bull barrel). My best handloads with it's heaviest bullet is the Hornady 120 grain. A very old (well tested) bullet in the 25-06.
It will shoot all day long into a 1.25" group at 100 yds, consistently, without any flyers. Yes..it will shoot tighter, smaller groups but I like to shoot at least 10 rnd grps esp to see if there are flyers.
I bought the gun for long range work so I can't have flyers. I'm still testing the lighter bullets hoping to find a good 75-100gr crow buster.
The Vanguard prices have always been very good I thought. I've never seen any negative comments about them on any of the forums I've been on either so if you have one or are getting one I'd say you'll like it.