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Why blue a barrel ?

Ignoring cosmetic appearance...

Why should we blue a chromemoly barrel ?

Been told that the barrel inside is not blued, which is the only part touching the bullet.

Live in a desert climate. Wipe the barrel with an oily rag.

What is gained by bluing it ?


Hammer
 
Blueing is a form of controlled oxidation. In other words, you are pre-rusting the barrel. A good blueing job will give you some limited resistance to rust compared to chrome-moly left "in the white." I confirmed this with a Swede Mauser that got put away with a few fingerprints. The non-blued bolt showed pitting before the blued receiver.

You should still, of course, use a rust preventative on blued components. The stuff I like best for blued guns is Eezox. It goes on wet but forms a dry barrier finish after the carrier evaporates. Eezox was a top performer in our Anti-corrosion product test.
 
If you are hunting paper then bluing a barrel is probably a waste of time and money if you can control the rusting issues.

If you are hunting animals or humans then I would want a matte finished blue or camo paint job...... no silver or flashy barrels that will reflect light and give your position away.

A pronghorn or elk can spot a barrel flash at several hundred yards. My son has a rebarreled Ruger and I could see his barrel flash at over 300 yards, it looked like a flash from a signal mirror.

But to each his own I guess
 
I think killing the flash and protection. I don't think I would want naked steel chrome moly even hunting. It rains and your rusting quick like.

Inside the bore, no its not blued, however your salty finger prints and hands can't get inside a bore...or can they??

Blueing is a form of protection. They used to rust blue barrels with like acid and a sweat closet!

RHINOUT!
 
Let's assume a strictly paper punching rifle or a prairie dog rifle.

Don't begin to know what barrel bluing cost in general. E R Shaw charges $35 to blue the barrel only. More for the barreled action.

Not trying to be difficult. One responder said if the barrel was properly cared for that bluing was unnecessary for paper punching rifle.
 
Just to be "correct", the insides of chrome moly barrels are indeed blued just like the outside.

Parts are blued in a very hot caustic soda bath. You cannot plug the bore without the air inside the barrel heating up, pressurizing and blowing the plugs out..... and the barrel is usually suspended in the "salts" by way of a black iron wire which runs through the bore..
 

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