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  #1  
Old 03-24-2020, 12:33 PM
Topher Topher is offline
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King's Barrel Bushing Questions

I have a King's barrel bushing and just got my barrel in the mail. The bushing ID is smaller than the barrel's OD.
In looking at the instructions on the King's packaging they are saying to turn the barrel down to match the ID of the bushing.
I'm just wondering about the logic of this. I'm a fan of and typically adhere to the mantra "Modify the cheaper part" first. However I'm assuming that they have their reasons.
Any one have any thoughts?
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  #2  
Old 03-24-2020, 02:30 PM
BBBBill BBBBill is offline
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Has to be an (very) old stock part as Kings has been defunct for years. I installed/fit a bunch way back when. When that was made there were not nearly as many barrels and bushings available as there are now and it is far easier for most folks to turn a barrel OD accurately than a bushing ID. What is the barrel OD/bushing ID?
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  #3  
Old 03-24-2020, 03:16 PM
WilsonCombatRep WilsonCombatRep is offline
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Always ream the bushing
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Sure! I would be happy to Google that for you!
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  #4  
Old 03-24-2020, 03:24 PM
Jim Watson Jim Watson is online now
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Yes. Nowadays there are all sorts of specialized tools for such work.
Once upon a time, there were fewer such gadgets and fewer aftermarket parts. A gunsmith would have been hard put to operate without a lathe.

My gunsmith sorely missed King bushings. As with several other parts, he had the dimensions down pat and the work required to fit them scoped out.

Last edited by Jim Watson; 03-24-2020 at 03:30 PM.
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  #5  
Old 03-24-2020, 03:54 PM
Topher Topher is offline
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Barrel OD is .580
Bushing ID is .566
I don't have an inside diameter mic, so both measurements are with a caliper.

In giving it thought, I am wondering if the little ridge in the bushing allows it to tilt...

I have a lathe. That's not an issue.

It's an older piece I grabbed off the classifieds here years ago on the cheap. I like it for the logo. Kinda nifty.

I have a Kings hammer being used in a a build getting done by a pro. It's just a cool piece.

Last edited by Topher; 03-24-2020 at 03:57 PM.
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  #6  
Old 03-24-2020, 06:13 PM
Jolly Rogers Jolly Rogers is offline
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Quote:
Originally Posted by Topher View Post
Barrel OD is .580
Bushing ID is .566
I don't have an inside diameter mic, so both measurements are with a caliper.

In giving it thought, I am wondering if the little ridge in the bushing allows it to tilt...
The ridge is the bearing surface and is fit in two steps. The bushing ID is reamed to .001” ( or less if skill in tuning allows ) larger than the barrel diameter. Then the ridge upper rear quadrant and lower front quadrant is laid back to allow for barrel tilt. This prevents barrel springing.
Joe
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  #7  
Old 03-24-2020, 06:34 PM
BBBBill BBBBill is offline
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With an ID of .566" you definitely do not want to turn the barrel down. There would be little left if you did! Sounds almost like you have a "skinny" barrel bushing for a 9 or 38S.
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  #8  
Old 03-24-2020, 08:40 PM
rogramirez rogramirez is online now
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Too much work , you should just sell it to me.


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  #9  
Old 03-25-2020, 09:01 AM
Topher Topher is offline
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Quote:
Originally Posted by BBBBill View Post
With an ID of .566" you definitely do not want to turn the barrel down. There would be little left if you did! Sounds almost like you have a "skinny" barrel bushing for a 9 or 38S.
I'm building a 9.
The bushing packaging says it's for a 9/38 and 45.
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  #10  
Old 03-25-2020, 09:03 AM
Topher Topher is offline
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Quote:
Originally Posted by Jolly Rogers View Post
The ridge is the bearing surface and is fit in two steps. The bushing ID is reamed to .001” ( or less if skill in tuning allows ) larger than the barrel diameter. Then the ridge upper rear quadrant and lower front quadrant is laid back to allow for barrel tilt. This prevents barrel springing.
Joe
Hey Joe.
Any chance you have a pic/drawing? I believe I know what you're saying but would love to confirm visually.
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  #11  
Old 03-26-2020, 06:41 AM
Jolly Rogers Jolly Rogers is offline
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I don’t have a photo or drawing saved. I don’t think I have ever seen one either. I’ll poke around to see if I can find an illustration.
Joe
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  #12  
Old 03-26-2020, 07:20 AM
Jolly Rogers Jolly Rogers is offline
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https://www.defensivecarry.com/forum...-swamps-4.html
Post #57

Here is an exaggerated drawing by ChrisATX that shows where the bushing needs to be enlarged to allow the barrel to tilt up into battery.
Best I could do for now.
Joe
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Last edited by Jolly Rogers; 03-26-2020 at 07:23 AM.
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  #13  
Old 03-26-2020, 08:54 AM
Topher Topher is offline
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Quote:
Originally Posted by Jolly Rogers View Post
https://www.defensivecarry.com/forum...-swamps-4.html
Post #57

Here is an exaggerated drawing by ChrisATX that shows where the bushing needs to be enlarged to allow the barrel to tilt up into battery.
Best I could do for now.
Joe
Hey Joe.
Thank you! Seriously helpful. I appreciate you taking the time.
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  #14  
Old 03-26-2020, 08:56 AM
Topher Topher is offline
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Originally Posted by rogramirez View Post
Too much work , you should just sell it to me.


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Heh...
If it wasn't so darn cool I'd consider it but then you probably wouldn't want it.
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  #15  
Old 03-26-2020, 09:50 AM
passx passx is offline
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Topher, any pics of these parts ? Just wondering about the “cool” thing vs calling EGW and getting one of their bushings that are close and made to allow barrel tilt. Good stuff by the way! I’ve used a lot of George’s parts that typically require only a little fitting.
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  #16  
Old 03-26-2020, 09:59 AM
seagiant seagiant is offline
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Hi,
It is surprising to me that quite a few people that work on 1911's...

Do not understand, that the barrel is jacked up on the end, like a Muscle Car...

While in battery in the slide.

This means that the bushing has to be "clearanced" at the front bottom and rear top of the bushing to prevent, barrel spring.

I would urge anyone looking to Smith their own pistol, to read Kuhnhausens Vol, I and II completely!
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  #17  
Old 03-26-2020, 02:29 PM
brickeyee brickeyee is offline
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Quote:
Originally Posted by Topher View Post
Hey Joe.
Any chance you have a pic/drawing? I believe I know what you're saying but would love to confirm visually.
But a copy of Kuhnhausen.
The first book should cover this.
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  #18  
Old 03-26-2020, 02:48 PM
passx passx is offline
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So Joe, let me ask, what is considered a normal barrel to bushing to slide fitment on say a bullseye gun ? On multiple guns that I have fit bushings to I try to fit the od to the slide as close to a line to line fit as possible and the bushing to barrel generally .0005 or less if possible. But on some guns it tends to bind on the barrel once hot, depends on the gun.

On the new Baer TRS I just bought the bushing to slide must be very close to line-line because it takes a metal wrench to turn it in the slide but the bushing to barrel is .001 to .0012 , but this is fairly new gun that I’ve only put 300rds through and I only. Measured it with my digital Calipers, I need to check it with my micrometers and dial bore gage to verify the numbers. Job for another day and really if I fit a new bushing to say the same od and reduce the id to just .0005in clearance would there be much if any difference ?

This gun has the 1 1/2” garantee on it along with the test target to prove it. Should I fit a new bushing ?
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  #19  
Old 03-26-2020, 04:26 PM
Topher Topher is offline
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Quote:
Originally Posted by passx View Post
Topher, any pics of these parts ? Just wondering about the “cool” thing vs calling EGW and getting one of their bushings that are close and made to allow barrel tilt. Good stuff by the way! I’ve used a lot of George’s parts that typically require only a little fitting.
Sorry, no pics. But it has a little crown on the bottom right corner of the bushing. Nifty.

So, I went out and got an 11/16 collet for my lathe. Put some pins in the slots and bored the collet out to fit the bushing. Bushing then went in the lathe and now fits the barrel. Overbored it just a touch but it'll work. It's to be a pistol for action shooting so it can't be prone to binding (that's what I'm telling myself anyway).

Thanks for all the help.
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