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Posted: 7/21/2010 4:27:37 PM EST


When I first got it it had been in a box since 1982.  For all practical purposes it was 100%.  I promised myself I'd only shoot it once and then put it up as a safe queen.



I should have never shot it.  I find myself shooting it more and more and the collett bushing has me worried.  I want to get one fitted but I don't know what kind to get to have fitted.  Recommendations?

Link Posted: 7/21/2010 6:26:52 PM EST
[#1]
Jerry Kuhnhausen, in his 1911 shop manual, goes through what needs to be done to ensure the fingers do not bend/break.
Link Posted: 7/21/2010 6:39:34 PM EST
[#2]
i have read evolution gun works can make one for you.



just send the measurements in or something like that
Link Posted: 7/21/2010 8:26:47 PM EST
[#3]
Quoted:
i have read evolution gun works can make one for you.

just send the measurements in or something like that


+1 to EGW
Link Posted: 7/22/2010 1:55:15 AM EST
[#4]
+1  measure the OD of the barrel and the ID of the slide.  Have EGW machine you a  thick angled solid bushing.
Link Posted: 7/22/2010 4:34:49 AM EST
[#5]
Thank you for the responses.
Link Posted: 7/22/2010 5:23:04 AM EST
[#6]
shoot it till it breaks (maybe in 50k rounds or so) then worry about it!
Link Posted: 7/22/2010 5:41:18 AM EST
[#7]



Quoted:


shoot it till it breaks (maybe in 50k rounds or so) then worry about it!


I've thought of that too.  



 
Link Posted: 7/22/2010 10:26:50 AM EST
[#8]
The Jerry Kuhnhausen shop manual fully explains how to determine if you might have a problem with the collet bushing.

Basically, some slides were too small inside around the rear of the collet fingers, over-sized collet, or the barrel was over-sized and this caused the collet fingers to "knuckle" when the barrel unlocked.
With not enough clearance, when the barrel started to unlock, the collet fingers had no room to open so the fingers tried to buckle instead of flex.  This is known as "barrel spring".

The test is to remove the slide and hand check how the barrel feels when you push it up into the locked position.
If you feel a springy tension on the barrel, you can correct it by lightly clearancing the extreme rear edges of the collet.
To do this, use a stone to bevel the rear edges of the bushing at about a 1 degree angle.  DON'T under-size the bushing, just bevel it enough to eliminate the springy feel.

If you're going to own 1911 pistols, the Kuhnhausen shop manual Volume One is the best money you can spend, and it's isn't expensive.  Buy it from Brownell's or Midway.
Link Posted: 7/22/2010 12:46:19 PM EST
[#9]
Solid Bushing.  the one in my Series 70 GCNM came from EGW.  Thick, angled.  Sent in the measurements - which I somehow got wrong, and a local gunsmith had to open it up slightly.

Shoots like a laser beam.....
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