rust in rifle bore

peterdobson

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A nice rifle was stored improperly and now has substantial rust in the bore. We have put Wurth Rost Off through a few times on patches. Is there another product which would be superior and what more should we be doing?
 
I brought my SVT40 bore back to life with JB bore paste and JB bore bright and a couple hundred patches :)

I plugged the barrel and left evapo rust in it for a few days
 
Unfortunately the pits remain. Scrubbing with Hoppes #9, letting it soak and scrubbing again, and again... will be as good as it gets in my experience. Accuracy is what you should be concerned with, not looks... I am sure there are products that you could polish the bore bright again but the rifling and accuracy would be diminished. Fortunately pitted bores often shoot quite well in a hunting rifle if you have a fresh crown.

JB Bore Cleaning Paste is not abrasive to steel and removes bullet and powder fouling. It will not remove pitting or rifling.
 
If you can find some "Motty's Bore Paste" get some. I know it's still available in the UK but haven't seen any here for a few years. It's a soft abrasive paste that was used expressly for cleaning up bores that were rusty. It's a bit more aggressive than JB's but not enough to do any damage to the steel. It was also used to get out cupro-nickel jacket fouling which can be very difficult for products like Sweets 7.62 and Wipe Out to remove.

I use my last jar of it sparingly and mix it 50/50 with JB's

Wipe Out is one of the best rust erosion compounds I have ever used. When applied and left to do its work then worked around with a brush it cleans out the rust to the bottom of the pits.
 
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