The heavy barrel doesn't make it more accurate. It only makes it heat up slower, so your groups dont start moving around as fast as with a sporter barrel. Heavy barrels are nice at the range, and you will think they shoot better, but if you compare a group of cold shots vs a group of cold shots you shouldn't see any difference. If its a hunting rifle, I'd go with the sporter because I'm lazy and dont want to totea heavy barrelall day. For a range toy, heavy barrels are sweet.