There are differing views as to whether or not it's necessary. I've read that some barrel makers believe it is to make shooters wear out their barrels faster, thus requiring another new barrel, and on and on. Ted Gaillard told me to clean after the first couple shots, then go ahead and let er rip. If you want to get better accuracy you might want to use David Tubb's " Final Finish". As for doing all that shooting and cleaning, if it makes you feel good, go ahead, otherwise, don;t bother.