I have these black marks all over my yugo m48 bolt. They keep appearing and my bore cleaner or quick scrub III can't seen to remove them. What are these black spots and how do I get rid of them?
Also, after shooting some ammo, the end of my bore (action end I mean) seems to have striations or scratch marks in it that don't seem to go away. It was shiny when I bought it but after shooting it 3 times and having gone through about 150 rounds total, I get these marks. Are the marks bad? Possibly rust from shootign corrosive ammo? ( I cleaned properly with water and what not afterwards). Or is it something I don't even need to work about for it's normal ware and tear? Thanks!
Also, after shooting some ammo, the end of my bore (action end I mean) seems to have striations or scratch marks in it that don't seem to go away. It was shiny when I bought it but after shooting it 3 times and having gone through about 150 rounds total, I get these marks. Are the marks bad? Possibly rust from shootign corrosive ammo? ( I cleaned properly with water and what not afterwards). Or is it something I don't even need to work about for it's normal ware and tear? Thanks!