Author Topic: discolored b78 mounts  (Read 415 times)

0 Members and 1 Guest are viewing this topic.

Offline arty

  • Trade Count: (0)
  • Member
  • *
  • Posts: 26
discolored b78 mounts
« on: November 19, 2003, 08:02:06 AM »
anybody know why b78 mounts and rings arent blued like the rest of the rifle?  thought i had kind of a reject set but just traded for a b78 in 6mm and the rings and bases are virtually red.  if i get them reblued, will they age red given  time?

Offline First Shirt

  • Trade Count: (0)
  • Member
  • *
  • Posts: 48
discolored b78 mounts
« Reply #1 on: November 20, 2003, 06:35:07 AM »
Don't know...the ones that came with my B-78 (marked Browning) are a dark blue/black.  Some types of tool steel turns a "plum" color when you try to hot blue it, maybe they changed the type of steel in the mounts at some point.

Greg

Offline bfoster

  • Trade Count: (0)
  • Member
  • *
  • Posts: 94
    • http://www.cardingtonmachine.com
discolored b78 mounts
« Reply #2 on: November 21, 2003, 04:56:23 AM »
It's a bit more accurate to say that the various alloy steels will "take" bluing correctly at different temperatures. Many of the steels used by Browning & Winchester in recent years do have a tendancy to turn "plum" colored if processed per the directions that are provided with many brands of bluing salts, but if processed at a bit higher temperature (10 to 15° F can make a major difference) will blue satisfactorily.

Of course this may not be practical. The 'smith would have to adjust the salt bath for just one set of rings- it's not just the temperature, it's also the concentration.

Bob