Have heard so many different ideals on bore cleaning and when it should be done. Was wanting to see what some of you guys do that shoot a great deal on when you decide to full bore clean. I have always done my reloading in 100 rnd batches and for years once I hit that 100 rounds fired I would reload a new 100 and do full bore clean. This has worked great but I recently started just shooting a rifle until groups opened up and then clean. I have also heard of PRS guys never cleaning a bore at all. Just wondering what some of you guys intervals are. Thanks fellows.