Summary for blacken shotgun barrels Discussion
Blackening mild steel shotgun barrels is essentially a firearm blueing or browning problem, and the thread points readers to a dedicated reference rather than giving a home-brew formula. Sandeep Singh asks for a better method, ready-made products, and books for blackening gun barrels. The only answer shown, from Jeffrey Holmes, CEF, directs him to "Firearm Blueing and Browning" as the relevant source. No process details, chemistry, or specific commercial product are provided in the excerpt, so the practical takeaway is that a specialized firearms finishing reference is needed for proper barrel blackening. The discussion is brief and does not compare methods, but it clearly frames the task as a standard gun-finishing operation rather than a general metal blackening job.
Q. We are into manufacturing of shot guns. We want to blacken the gun barrels, although we are doing it with a very crude method , we would like to have the new method. Kindly suggest the formula to get the things carried out. Is some ready made stuff is available for that. Kindly mail us immediately. Any book concerning the same will be appreciated. We are ready to pay charges for the consultancy.
Sandeep Singh
– Pathankot, Punjab, India
2005
2005
A.
Firearm Blueing and Browning ⇦ on
eBay or
Amazon or
[affil links] by Angier is book for you, Sandeep.Good luck!
Goran Budija
– Cerovski vrh Croatia
A. Yikes! Shotgun barrels of mild steel? Very dangerous. They should be chrome-moly, 4140 or equivalent. Forget chrome plating until you get some decent steel.

Jeffrey Holmes, CEF
Spartanburg, South Carolina
2006