Picked up a Model 11 Trophy Hunter Package before doing my homework. I am not fond of the barrel (would have preferred a heavier barrel). My question is will I see a difference with a Criterion or Shilen prefit Barrel installed? Is it is as simple as plug and play with these barrels?

I am trying to decide if I should ditch the rifle and start from the ground up or work on building what I have. Also does anyone know which action this gun comes with? I know its a short action but it seems like there are two different ones?