I inherited a rifle from my dad who got it from his last fall. It's an old Sako .243. I have some experience with bench shooting a couple other Savages I own, and can repeatedly shoot sub 1/2 moa. I absolutely cannot get this rifle to shoot. I've cleaned the snot out of it, tried different weight bullets, even did a couple of paths of bedding to float the barrel. Still 2 to 3.5 inch groups at 100. Do you think new barrels are available for an old gun like this? Should an average smith be able to change it out? I wanna keep it as an heirloom, but find an inaccurate rifle worthless. Thanx for any ideas.