The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > The Smithy

Reply
 
Thread Tools Search this Thread
Old January 21, 2011, 03:07 PM   #26
guncrank
Senior Member
 
Join Date: July 15, 2006
Location: Fern Creek ,KY and Metro Louisville at large
Posts: 430
I must be dumb but for the life of me, it seems to me that in gunsmith school we used two gauges when we where learning to chamber Mauser actions.
A go and nogo, that is all.
And I have continued to use those two gauges up till now.
Close on go and not close on nogo.
An stripped a bolt down completely.
CEW
__________________
Republic Arms and Armaments
07
1-502-231-1118
Machine Shop and Finishing Services to the trade and public
guncrank is offline  
Old January 22, 2011, 07:27 AM   #27
mega twin
Senior Member
 
Join Date: August 15, 2006
Posts: 434
Jim,the rifle was a low numbered gun.
By whoever rechambered it,without marking it as to the change,there is no telling who did the work,or what shape it was in before the work was done.
An expensive lesson for me, but no one was hurt by it,except monetarily,so alls well.
mega twin is offline  
Old January 22, 2011, 05:00 PM   #28
F. Guffey
Senior Member
 
Join Date: July 18, 2008
Posts: 7,249
"The last 03a3 I had would not fire a 30-06 round"

The low number Springfield or Rock Island would just let go, nothing before and then all of a sudden the rifle would swarm, when loading for a low number I call it meets and or exceeds BUT that only makes sense to me, the ones that failed I attribute to sudden shock, if the receivers were able to stretch the failure would have been progressive and there is no way to add your low number to the list of known failures.

F. Guffey
F. Guffey is offline  
Old January 23, 2011, 11:00 PM   #29
Unclenick
Staff
 
Join Date: March 4, 2005
Location: Ohio
Posts: 21,024
Guncrank,

You are remembering correctly. If you are cutting a new chamber, those two are all you need. But if you are looking at a gun with some wear, the Field NO-GO is what you need to see if it's still in spec.


Mr. Guffey,

An excellent point about the low number failures. Hatcher's investigation dealt with a relatively small total number of failures; about 1 in 15,000. But there is no central record system for reporting subsequent failures to know what the number has come up to. A few collectors have succeeded in shattering some with a hammer. There's an example of your shock. But how many failed in actual use with normal ammunition at the pressure they were designed for originally? Nobody knows if it is significant or trivial.

It's one of those questions that, if a giant pile of money magically fell in my lap, I'd be tempted to investigate. The only method I can think of, since many of the old guns and past owners have gone, would be to buy up a large random sample and proof them all and to see if they all survived.
__________________
Gunsite Orange Hat Family Member
CMP Certified GSM Master Instructor
NRA Certified Rifle Instructor
NRA Benefactor Member and Golden Eagle
Unclenick is offline  
Old February 21, 2011, 10:35 PM   #30
airdrop
Junior Member
 
Join Date: February 21, 2011
Posts: 7
Not all bolts are the

same look for a shop that has old bolts to try. If you find a bolt that locks up tighter do a swap.
airdrop is offline  
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

Forum Jump


All times are GMT -5. The time now is 11:24 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2021 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Page generated in 0.03839 seconds with 10 queries