Watch the PRS competitions and the equipment they use. I started last year in using a bag under my trigger elbow while sitting, shooting off of a Bog-Pod. It has extended my kill range from 2 to 3 hundred yards dispatching coyotes.
I traded for a Tikka T3x lite in 270 win several months ago. I bought a YoDave trigger spring to get the trigger down to 1.5 lbs. Put a new recoil pad on it. Used a dremel tool to free float the barrel. Put a muzzle break on it. (Kicked like a Mule). After all of this, I did an OCW test w/ 130...