blueing

[Tom Gamble]

anyone know about rainbow blueing
and how to do it.
im not sure if that is what its called
i have a 410 shotgun with this
rainbow type blueing on it
just wanted to know how
to achieve it

thanks Tom

[firstgenbird]

I found these people when I was looking into restoring black oxide bolt passivation.

http://www.brownells.com/categories.aspx?c=4798

If this is a one shot deal, pun intended :lol:, you may be better off finding a vendor who has the processes to achieve what you want under control.

[doug estelle]

sounds like its color casing years ago it was done with cynide but not anymore what type of gun is it ?

[Rasper]

It sounds like what you are describing is color case hardening. A number of high quality gun manufacturers used the process years ago, mostly for receivers, never on barrels that I have seen. Go to:

http://www.lonestarrifle.com/casecolr.htm

and

http://www.trvnet.net/~ronsgunrepair/color_case_hardening.htm (http://www.trvnet.net/%7Eronsgunrepair/color_case_hardening.htm)

and see if this is what you want.

Richard

[Tom Gamble]

Richard,
its on the receiver like ya say
not on the barrel.
Doug,
the gun is stored at my grandma's
in Martinsville Va. i got the gun when
i was like 7 years old 1974
its a Harrison& Richardon

thanks Tom

[jaduncan]

Case hardening its surface hardening. The only place that I know that would have something to do it with would be Brownells. Dunno if I would want to get into it because I think it did involve cyanide. Or leaving the part packed in some kind of salts. but they would be the people to ask.

Does that H&R have the breakdown lever? or a push button beside the hammer? If its the latter (topper model maybe?) I believe they are now sold by New England Firearms. Good gun,not expensive but if it does what its supposed to,every time. What more can you ask.


Allen

[1smoothline]

One thing to watch for on the older versions of their single shot is that they had no transfer bar to protect the fireing pin when you let the hammer down manually. It may be why they are not in business under their old name any longer. Liability issues I suspect.
Anyway, that finish is not so easy to reproduce well for a neophite. Different companies had their own recipies that they kept to themselves. Different alloys of steel gave different results as well. There are instructions on the web for this but I would practice on something worthless first just get the procedure down pat before going at your rifle. Go carefully, too much heat could ruin the strength of the firearm.