Which approach is NOT recommended when identifying issues with rifle accuracy?

Ignoring cleanliness is indeed not a recommended approach when identifying issues with rifle accuracy. Maintaining the cleanliness of the rifle is crucial because fouling, debris, and residue can significantly affect accuracy. When a barrel is not cleaned properly, it can lead to varied bullet performance due to components like copper or lead buildup, which can create uneven pressure and destabilize the projectile as it travels down the barrel.

Consistent ammo testing, inspecting barrel condition, and utilizing a bore scope are all important practices for diagnosing accuracy problems. Consistent ammo testing helps shooters determine how different types of ammunition perform in their rifle, while inspecting the barrel condition involves assessing for any damage or wear that might influence accuracy. Utilizing a bore scope allows for detailed examination of the barrel's rifling, allowing shooters to identify any potential issues that may not be visible externally. Thus, cleanliness should be a priority, making its neglect a critical oversight in diagnosing accuracy concerns.