[Big Caliber]

What am I missing here? I've never hunted due to the lack of opportunity, though I'm sure it would be a good time. Since I started shooting a rifle I have always read and heard that a hunting rifle need not be as "accurate" as a target grade rifle. But yet they say, "Bullet placement is everything!" Doesn't bullet placement rely somewhat on having a load you trust to get to the point of aim accurately? consistantly? Or am I just pikin' nits? I would think that a target rifle would be a good choice for hunting, say, medium size game out to 200yds. Or is the weight of a target rifle an issue? Just wondering.