So I’m new to shooting older rifles and corrosive ammo. I went out shooting and thought I cleaned it properly afterwards. Apparently I didn’t. (I did not get the bore). It looked pretty bad. I did an invasive cleaning with wire brush and heavy gun oil. The bore looks OK now but I’m worried I did irreparable damage. I shot about 50 rounds and it sat around for 2 weeks. What are the chances I’ve ruined it?