Its ok for a factory chambered rifle. Sometimes you need to break your rifle in, just like a new car. For 308, I would not trust naything other than a PTR, H&K, or a Spring Field Armory rifle. It could be the rifle too that you have but give it a few hundred more rounds before returning it.
Don't forget a lot depends on the ammo too. Buy LC or Seneca Armory brass ammo and you will be amazed how much the ammo makes the difference. SA is little cheaper than the LC. Also start with 147g ammo on your new rifle, not that it matters but cost wise I would rather break my rifle in using cheaper rounds than go for 168g high end rounds. Never use steel case ammo either.