I hunt occationally with a semi-pro roo shooter.
He expects to get between 30 and 40 kangaroos every night he hunts and they all have to be in the head, clean one shot kills or he cant sell them.
He uses a Sako med action 22-250. Nice gun. He complained that it wasn't shooting well so I took it and piller bedded it just to see if it became consistent again.
Tested it, 1/2moa 5 shot groups with the ammo he gave me.
We went out and he had a go at 100m one night, result... not happy.
I took it and shot a cloverleaf. He took it and it shot beautifully for him.
I dont think it was the bedding or any of my ministrations to the rifle it was his confidence in it that was lacking.
I see that as a forgotten point in shooting, confidence and being secure in the knowledge that the rifle CAN perform really does improve the shot.