A friend of mine gave me 500 rounds of eley tenex, but they are pretty old. Although he had stored them in an ammo can, the lube on the ammo had dried up and turned powdery white. Kind of like a grainy coating. My friend shot 50 rounds through his 10/22 with no misfires, ejection, extraction, or feeding problems, and groupings were very good. My questions is, would the grainy lubricant affect my chamber/barrel ? Since the lube has dried up and turned into a grainy coating, I'm afaraid it may have an abrasive effect.