Montana Extreme 50 BMG
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This is an example of how facts can be used to distort.
[/ QUOTE ] Cliches have no magical power, despite their popularity. Dropping a cliche does not dismiss or reject a statement you disagree with.
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Ammonia will attack the iron in a gun barrel.
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Where did you get that information? I've been working with an eminent ammoniacal chemist (ammoniacal etching of copper is a billion dollar industry) and a very competent laboratory chemist. The literature is silent on this question - thus my proposed experiment to definitively answer the question.
Note phase one of the experiment would only answer the not so useful question, "does (high baume) ammonia attack gun barrel alloys". A much better question is "does ammonia in the strength used to clean guns, and the duration of exposure, cause any measurable deleterious deterioration to the gun barrel. I suspect the answer to that 2nd, much more difficult question is "no". Getting a definitive answer to the first may yield the latter moot.
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So will water that's in the air as humidity. Yet I don't see, nor have ever seen, any shooter wrapping their shooting irons in water proof material to keep the moisture and hence, rust off the iron.
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Many hunters apply a thin oil coating to their barrels after cleaning (which forms a moisture barrier). Most of my guns are stainless steel which is not reactive to humidity (esp when the gun is cleaned, the barrel oiled). Wrapping steel in a vapor or even moisture barrier expedites oxidation and would be the worst thing you could do you your gun (as far as promoting oxidation). But you do make a valid point - even if minimal/inconsequential damage is done, and a significant improvement is made - you have a very positive transaction.
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Rust is a combination of water
[sic]conndensed to the metal and time for the chemical process to work.
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Iron oxide is formed by the combination of water and iron - water from condensation, sweat or any other source. I don't think any modern firearm is made from pure iron. Gun alloys have differing oxidation reduction potentials. My stainless steel Lilja pipes are far more oxidation resistant than my old blued factory 30-06.
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That's why every ammonia based cleaner has a limit on the label as to the time it's allowed in the barrel. You take away the time needed for the process to work.
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Labeling in no way establishes the truth. (Just read most of the labels at the store). It's very easy to demonstrate how rapidly ammonia evaporates. My guess is the
<font color="purple">Time labeling </font> wives tail is just myth handed down. It's trivial to take a baume meter and measure the strength of ammonia. Now dump the ammonia into an inert (uncovered) container. The ammonia will rapidly evaporate (the rate dependant on the container topology, humidity, temperature and wind. (I do much of my cleaning outdoors or indoors with quad high speed fans)
My main points remain unchallenged. The tests are 100% bogus because
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Ammonia quickly evaporates and looses strength [*]
Sealed immersion tests are invalid and not what happens when you clean your barrel. [/list]
I do get your main point, that even if ammonia is not 100% non-reactive to gun barrels, it does far more good than harm. That is likely true, especially when used in moderation and only when necessary (as Daniel Lilja recommends).
My guess is that wipe-out (with the accelerator) works better than I thought possible because the bubbles trap oxygen and seal the barrel (slowing down ammonia evaporation). I have no empirical evidence to support my wipe-out conjecture.
It's impossible to baume test wipe-out so I can't measure it's strength. The other cleaners are too expensive to baume out too.
Here's a free tip for your web pages. When using FP to make a new page, set the pseudo meta-data HTML <title> tag to something appropriate (besides "New Page 1")