Bladerunner,,,,you sound alot like me,, with the unsolid bench and all. I made my own bench and just leave it back in the area where I shoot,,so anyone can use it. But my 223 bull is good for 2" groups too (off the unstable bench and rest) with the Win.Wht. Box and the Ultramax 50gr HP. Gonna try some Ultramax NBT 50gr next purchase.
Now my 243 bull shot the Hornady 58gr vmax and the 75gr HP into a 2" groups,,but most other ammo was a little more open. Win.silver box 100gr shot okay for a kill zone hit.
I put a Choate tactical stock set on my gun,,,but couldn't get comfortable with the rear stock so I sent it back,, the front forearm is really nice for bench shooting and not too wide for off hand either. I also found a flat plastic washer a filed it to fit over the barrel lug and inside of the fore arm for floating and then added a smaller o-ring. So the barrel is only solid at the hinge area.
I don't get discouraged....I know that from a solid bench these guns will group tighter,,,,it's just much more convienient for me to hike behind the house and shoot there.