On last day of Kodiak deer trip the seas were up and my gun got splashed pretty good getting back to camp. Wiped it down with an oil rag. 2 days later got back to Palmer and busy cutting up deer and catching up on house chores and forgot about my trusty rifle. When I cleaned it a week later the patches through the barrel were quite rusty. Scrubbed on it long time with nylon brush and copper solvent. Still appears to be 3 small patches of rust approximately in middle of barrel. How do I get that taken are of or am I just screwed due to my negligence? Will firing a couple shots clean those spots? Scrubbing with brass bore brush? Lapping compound?