I noticed some white "salty"? looking deposits in the muzzle of my barrel today - they extended down the barrel as far as I could see and were in "lines" mainly. What are they? Background info.: I shot about 40 rounds last weekend when I notice my accuracy falling off and decided to run a couple of patches of Hoppe's down the bore. Shot a couple of more rounds and packed up for home, intending to do a thorough scrubbing once I received my new cleaning equipment that I'd order from Russ Haydon this week. I ran a couple more patches of Hoppe's down the bore today to protect it until my order arrives and I can give it a good cleaning.