I read an article where a guy bought a rifle in say 204 (i don't remember) and bought another barrel in 22-250 and separate bolts to go with it. He shot his 204 3 different times and removed the barrel between each shot and shot a .404 group. Then switched the 22-250 barrel out and shot almost the exact same group 1" high and 1" left removing the barrel again between shots. How would you go about doing this? It's a dang good idea, but he had a custom kelby 700 action with shillen barrels (which I can't afford either) and I want to use a howa 204 factory gun and just buy a spare bolt and barrel so I can do the same thing.