Concentrate on not flinching, not on shooting groups.
I agree.
I think a big advantage to dry firing is, you can always go into dry fire mode, even while shooting live ammo. You simply state to your brain, "Im dry firing", and focus on holding your sight alignment and breaking the shot, like you do while dry firing. Those are the only to things in your mind at that point, and your brain now knows to expect the "click" when the trigger breaks. The bang and recoil just occur, and you just roll with it, and follow through.
You also REALLY need to learn how to properly hold/mount the rifle. When properly done, the rifle does not "kick", you simply move as one with the rifle as it recoils.
This is where the difference in shooting from a bench, and shooting from good field positions comes in. You tend not to be able to become one with the gun at a bench, and the gun does kick.
Improperly fitted guns are also a big detriment, and I find long LOP's and recoil pads actually add to the problem, rather than fix it. Ill take a checkered steel butt plate on a rifle with a 12-13" LOP over one with added LOP due to a recoil pad, or worse, a long LOP and the pad. All youre doing with a gun that doesnt fit, is fight with it. If you shoulder it quickly, like you do with a snap shot, the sights should come into alignment, with a natural cheek weld, without thought, and you shouldnt have to fiddle with the gun as you get there. It should be fluid and natural.
As far as shooting groups, the harder you try, the harder it is. Dont look until youre done either. Whats left when your done, is reality. If you were calling your shots, you should already know what the group looks like anyway.