I was checking over a friends 20 ga side by side he offered me for sale this weekend and noticed some “brownish streaks†inside the barrel. It is in the last inch of the chamber, and then starts again about 4†up from the end of the chamber. Otherwise the bores look great.
I ran Hoppes #9 through it with a brass brush then used cotton patches to swab the Hoppes out. Checking the barrel right after I did this, the “streaks†looked to be gone. But an hour or so later – I assume when all the Hoppes evaporated, the streaks were back.
So I repeated the above with a 12 ga brass brush and #9 again. Again, the bores looked clean, but later, the streaks were still there.
I then used CR10 and worked patches through the bores as stated on the back of the bottle. Looked to be clean, but the next morning the streaks were there.
I tried one or the other cleaning procedures 6 times, but still the streaks are there.
Is this rust I’m trying to remove? Is there something a gunsmith can do to clean this up – or should I just skip this one?
I ran Hoppes #9 through it with a brass brush then used cotton patches to swab the Hoppes out. Checking the barrel right after I did this, the “streaks†looked to be gone. But an hour or so later – I assume when all the Hoppes evaporated, the streaks were back.
So I repeated the above with a 12 ga brass brush and #9 again. Again, the bores looked clean, but later, the streaks were still there.
I then used CR10 and worked patches through the bores as stated on the back of the bottle. Looked to be clean, but the next morning the streaks were there.
I tried one or the other cleaning procedures 6 times, but still the streaks are there.
Is this rust I’m trying to remove? Is there something a gunsmith can do to clean this up – or should I just skip this one?