What does it indicate if light copper fouling is easily removed from the bore?

The indication that light copper fouling is easily removed from the bore suggests that the rifle is in a near break-in phase. During this period, the barrel is still settling and conforming to the bullet as it passes through, which can result in minimal fouling compared to a barrel that has been fully broken in.

In this context, aggressive polishing should be avoided because the barrel is still adapting, and using abrasive methods could potentially cause unwanted wear or damage to the internal surface. The goal during this break-in period is to allow the barrel to smooth out naturally through use, rather than forcing it with abrasive materials that could alter its characteristics and compromise accuracy and longevity. Hence, the condition of light copper fouling being easily removed confirms that gentler cleaning methods are the best approach at this stage.