I've got a completely stock 243 with a Redfield scope, and I'm switching it over from my hunting gun to my first target rifle. I would someday like to compete in F-class competitions. But what would be the range I could shoot with this gun effectively? I plan on building it as I progress and become more experienced. Im going to get a better stock, a box mag system, and a better scope later on. But would this consistent enough to shoot at least 400 yds with?