I'd still look closer at the stock, my group size decreased drastically after I stiffened up the forearm and bedded the action in the tupperware stock. There is a ton of flex there that you propably aren't seeing on the bench. also added weight to the butt and put on a Karsten cheekpiece to give a better eyeline to the scope. all of these really helped on my 7mm-08, went from average 1.5" group to about .75" now with factory Fusion ammunition!