My son's bike came with a rim that was out-of-round, don't remember the wheel brand, the bike was Specialized. There was no way to make it round by adjusting the spokes. The LBS and Specialized agreed and replaced the wheel. Sometimes trying to round out a wheel can lead to uneven spoke tension that can be problematical down the road.
Park makes a tensiometer available for about $55, a good investment.
Al