Go Back   CMP Forums > CMP Sales > CMP 1911
Register FAQ Members List Calendar Mark Forums Read

Reply
 
Thread Tools Display Modes
  #11  
Old 04-08-2019, 01:37 PM
Got N2O Got N2O is offline
 
Join Date: Apr 2017
Posts: 54
Default

Quote:
Originally Posted by thebearpack View Post
Barrel may very well be original too. Is there a "G" on the bottom in front of the lug?

The shipping info comes from Charles Clawson's list. Chances are the Colt letter would only narrow it down to one of those two dates so might not be worth the expense, but they are cool to have.
I didn't see a "G". Would that indicate a government conversion of a civilian model?
Reply With Quote
  #12  
Old 04-08-2019, 01:59 PM
thebearpack thebearpack is offline
 
Join Date: Jan 2010
Location: Pittsburgh, PA
Posts: 1,752
Default

Quote:
Originally Posted by Got N2O View Post
I didn't see a "G". Would that indicate a government conversion of a civilian model?
No. The barrel you showed would most likely be USGI but the other marks help to date it. For example, there might be a small G, a large G, an F, or a number in front of the lug or there might be a boxed C on one side of the lug. All those help narrow down the manufacture date.
Reply With Quote
  #13  
Old 04-09-2019, 05:53 PM
bucketofgut bucketofgut is offline
 
Join Date: Oct 2018
Location: Piedmont area, North Carolina
Posts: 136
Default

The pitting might be hardness testing. Just a punch and a hammer?
Reply With Quote
  #14  
Old 04-09-2019, 06:49 PM
jwenum jwenum is offline
 
Join Date: Feb 2013
Location: N.E. Ohio
Posts: 206
Default

Not at expert but hardness testing would probably only involve one divot on any one piece.
Reply With Quote
  #15  
Old 04-09-2019, 07:39 PM
ZvenoMan ZvenoMan is online now
 
Join Date: May 2011
Location: AL
Posts: 3,717
Default

Quote:
Originally Posted by bucketofgut View Post
The pitting might be hardness testing. Just a punch and a hammer?
I have never used a hammer when testing hardness, how do you do that?

JH
__________________
Zvenoman

Zvenoman's Feedback Thread
Reply With Quote
  #16  
Old 04-09-2019, 08:04 PM
Got N2O Got N2O is offline
 
Join Date: Apr 2017
Posts: 54
Default

Quote:
Originally Posted by jwenum View Post
Not at expert but hardness testing would probably only involve one divot on any one piece.
I thought the same thing. When I first saw it, I thought "punch mark?"/hardness test. Then I noticed more than one divot so I assumed it might be damage or pitting.
Reply With Quote
  #17  
Old 04-10-2019, 09:57 AM
Jakeroub Jakeroub is offline
 
Join Date: Dec 2016
Location: Mass
Posts: 797
Default

Quote:
Originally Posted by ZvenoMan View Post
I have never used a hammer when testing hardness, how do you do that?

JH
It would have to be a calibrated hammer, duh!
Reply With Quote
  #18  
Old 04-10-2019, 01:42 PM
deldriver deldriver is offline
 
Join Date: Sep 2010
Location: Powell, Tennessee
Posts: 1,198
Default

Lookup Rockwell hardness testing. It's primitive, but somewhat dependable.
Reply With Quote
  #19  
Old 04-10-2019, 05:43 PM
bucketofgut bucketofgut is offline
 
Join Date: Oct 2018
Location: Piedmont area, North Carolina
Posts: 136
Default

Quote:
Originally Posted by ZvenoMan View Post
I have never used a hammer when testing hardness, how do you do that?

JH
I was trying to be funny and get some people to call me dumb.
Reply With Quote
  #20  
Old 04-10-2019, 06:28 PM
ZvenoMan ZvenoMan is online now
 
Join Date: May 2011
Location: AL
Posts: 3,717
Default

Quote:
Originally Posted by deldriver View Post
Lookup Rockwell hardness testing. It's primitive, but somewhat dependable.
I know what Rockwell Hardness Testing is, my question is regarding the hammer and punch.

JH
__________________
Zvenoman

Zvenoman's Feedback Thread
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 07:19 PM.