I cant remember where I read this, but I remember reading where when you are cleaning with patches, you should never fully exit the muzzle all the time, you should always go about 1 inch before the end of the muzzle. This is how I have been recently cleaning my barrels. However, I was just looking through the Sierra manual, and they say to always fully exit the muzzle when using patches or brushes. Which is correct? Is there any flaws or advantages to either?