Author Topic: Can someone explain...  (Read 516 times)

Offline Navy Six

  • Top Active Citizen
  • *
  • Posts: 376
  • SASS #: 26385
  • NCOWS #: 1410
  • Liked:
  • Likes Given: 6
Can someone explain...
« on: January 23, 2020, 02:47:09 PM »
Since the weather broke a bit today, I took a 1996 vintage Pietta 51 Navy(.36) out to shoot. When I got home and took the gun apart to clean, I noticed one of the frame pins had sheared off, with one half staying in the frame and the other half in the barrel lug.  For some reason I put a magnet on the half in the barrel lug and it came right out. On closer examination, I noticed the pin was not solid but had some type of "core" with a metal jacket surrounding it. I can only compare it to a copper jacketed bullet with a lead core. The part that stayed in the frame looks identical. The "jacket" is very even and a noticeably different material. I have never had a pin shear off like this so I've never had to drill one out of the frame yet. I bought the gun brand new so I know the pin is original.
My question is this: Is this how these pins are normally constructed? I was just surprised at what I found.
Only Blackpowder Is Interesting 
"I'm the richest man in the world. I have a good wife, a good dog and a good sixgun." Charles A "Skeeter" Skelton

Offline Tuolumne Lawman

  • CAS-L Ghost Rider
  • Top Active Citizen
  • *
  • Posts: 2422
  • Grass Valley, CA in the Sierra Nevada Mountains
  • Liked:
  • Likes Given: 12
Re: Can someone explain...
« Reply #1 on: January 23, 2020, 05:47:28 PM »
All the ones I have seen have solid steel pins.... :o
CO. F, 12th Illinois Cavalry  SASS # 6127 Life * Spencer Shooting Society #43 * Motherlode Shootist Society #1 * River City Regulators

Offline Coffinmaker

  • Top Active Citizen
  • *
  • Posts: 6185
  • Liked:
  • Likes Given: 62
Re: Can someone explain...
« Reply #2 on: January 24, 2020, 08:55:28 AM »

PLUS ONE too The Lawman.

I have seen the pins come out of the frame.  I have not had one that had broken.  What you describe, sounds to me like a steel pin with a crystalized center.  There would be no economic reason to make a small part like that out of two different materials.

Offline Major 2

  • "Still running against the wind"
  • Deputy Marshal
  • Top Active Citizen
  • *
  • Posts: 12961
  • Cracker Cow Cavalry
  • NCOWS #: 3032
  • GAF #: 785
  • Liked:
  • Likes Given: 83
Re: Can someone explain...
« Reply #3 on: January 24, 2020, 09:31:40 AM »
"...sounds to me like a steel pin with a crystalized center. "

ditto ...I think Coffin maker is spot on
when planets the deal !

Offline AntiqueSledMan

  • Very Active Citizen
  • *
  • Posts: 60
  • Liked:
  • Likes Given: 2
Re: Can someone explain...
« Reply #4 on: January 27, 2020, 06:34:37 AM »
Hello Navy Six.

Sounds like a case hardened pin to me, when parts are case hardened only the surface is hardened.
I know on a Thompson Shaft (Trade Marked) when you face it off, the end will give the appearance
of two different materials. I'll bet the center is soft.



  • Guest
Re: Can someone explain...
« Reply #5 on: Today at 07:16:44 PM »


SMF spam blocked by CleanTalk

© 1995 - 2020