Originally Posted by
sharpshooter
Bluing adds nothing to dimensions or finish. It simply changes the color. The only thing left on the surface is the residual crap that's in the oil they seal it with. That's something that can be taken out with a normal scrubbing, and should be done before a new rifle is fired for the first time.
For it to be not blue, the bore would have to be plugged, and I don't know of anyone that plugs bores prior to bluing. It is a dangerous thing to do considering the temperature of the hot caustic bath is around 300 degrees, and a plug blowing out would cause a catastrophe. Besides that, it would take up too much time on the production line.
There is no area of "high pressure", as the pressure is equal throughout the whole chamber.
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