I own a Borden Alpine and have measured it up, down and sideways. Ditto several of the Stiller Predator actions, albeit I don't own one. Both are great out-of-the-box actions and will give all the accuracy potential a hunting rig will ever demand.
Another thing to consider is that occasionally even custom 'BR accuracy level' actions need a bit of tweaking to make them perfect.
Good shootin'. -Al
