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However, it would seem I have been over looking one very small but extremely important face.
Does this mean you haven't been cleaning the bolt face?
In case not (I'm sure you know this, but if not), using that Russian and Bulgy ammo also requires neutralizing the primer residue, usually with a few patches of ammonia (or soap and hot water) followed with regular cleaning with Hoppes #9, oil or whatever you normally use. If the bolt face has been neglected, then I suspect that this may be in part why it is eroding away so quickly.
Usrifles comments are also sound.
Keith
if its a Century rifle or import you should contact and inform them of the problem.
What are the last two digits of the serial number? 'New' might just be 'new to me' instead.
Clean corrosive ammo with boiling hot water, not ammonia. You're wanting to wash away the ammoniatic salts, introducing more won't do a thing.
if its a Century rifle or import you should contact and inform them of the problem.
Done. You thinks this will do any good?
Your rifle was built as a military weapon. To legally import it, it was broken down to a kit, then was reassmbled with a US compliant receiver.
That's why it may have a half ground bayonet lug and a threaded muzzle with a "spot" weld on the flash suppressor.
Later rifles are built for export.
usrifle
Clean corrosive ammo with boiling hot water, not ammonia. You're wanting to wash away the ammoniatic salts, introducing more won't do a thing.
Do you mean an ammonium salt?
Actually there is truth to the quoted statement, but it represents an incomplete picture.
Water is an excellent solvent for compounds like the salts deposited by corrosive primers in rifle barrels. These salts love water (hense the rust) and as such they are also highly soluable, which is why soapy hot water is the recommended method for removing them. The salts are very quickly washed away. It is also a more thorough method than using an ammonia based cleaner. An ammonia solution is more convienient though, especially at the range, plus it is less messy and is every bit as good as the soapy water treatment if a little extra care is taken. But it must be said, it is the water, not the ammonia that removes the salt. OK...so why use the ammonia? Read on...
Early on, mercury fulminate primers were used, but potassium chlorate fairly quickly became the 'standard' primer compound, because the mercuric primers had a nasty habit of embrittling the brass. Of course, this was bad for long-term storage, the main reason for using corrosive primers in the first place. Both water and ammonia are excellent at dissolving metallic salts like those containing mercury, but when potassium salts came on the scene, well, the ammonia became ineffective because it can't dissolve KCl. What the ammonia will do is dissolve copper deposits. Every time you fire a round, every little pit and imperfection in the bore gets filled with little layers of salt and copper. If you use just water, you leave some salt covered by copper and there it remains. Over time, the copper will oxidize, become permeable to atmospheric water at which time the salts underneath will grab that water and start the rusting process. So when you use an ammonia solution the ammonia removes the copper deposits and the water removes the salt deposits. Then after all of that you can use your Hoppes #9 or whatever, then your Remoil, then your done.
Keith