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Offline Blucollar

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Barrel fitting question?
« on: December 07, 2012, 01:15:23 PM »
I'm on my first barrel fitting & have a quick question.
 
Is it normal to have to remove .040 from the pivot section (half circle gap) of the barrel lug I'm fitting?
 
When I started, the barrel would not clear enough to lock up & looks like this much material will need to be removed (Minimum).
 
Thanks, Jim
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Offline dave29

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Re: Barrel fitting question?
« Reply #1 on: December 07, 2012, 01:26:30 PM »
Just take off a little bit at a time and keep trying it.

I made the mistake once of going too long in between seeing if it locked up, and I took too much off. Got impatient and was in a hurry. Learned my lesson.
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Offline gcrank1

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Re: Barrel fitting question?
« Reply #2 on: December 07, 2012, 02:50:45 PM »
Well, that is kinda 'a lot', but how did you determine that?
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Offline Blucollar

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Re: Barrel fitting question?
« Reply #3 on: December 07, 2012, 05:35:44 PM »
I measured as close as I could between the distance of the front of the lug and the latch shelf with calipers. (between original barrel & the barrel I'm fitting).
 
Also I should've asked, Is a round file the best way to remove this much and still hold the form of the front of the lug?
 
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Offline Blucollar

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Re: Barrel fitting question?
« Reply #4 on: December 09, 2012, 05:43:52 PM »
Thanks guys.
I got it.
Blu
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Offline gcrank1

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Re: Barrel fitting question?
« Reply #5 on: December 10, 2012, 03:56:33 AM »
I am curious; how much did you have to take off compared to your calculations?
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      ><   ->
We are only temporary caretakers of the past heading toward an uncertain future
22Mag UV / 22LR  Sportster
357Mag Schuetzen Special
45-70  SS Ultra Hunter with UV cin.lam. wood
12ga. 'Ol' Ugly OverKill', Buck barrel c/w  SpeedStock  and swap 28" x Full bird barrel, 1974

Offline Blucollar

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Re: Barrel fitting question?
« Reply #6 on: December 10, 2012, 12:46:00 PM »
I didn't do a final check, but I was way high!
 
I'd say I was alot closer to .010 than .040.
 
Did as suggested, took a little off and kept trying it, got there alot faster than I thought I would.
Thanks again.
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Offline quickdtoo

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Re: Barrel fitting question?
« Reply #7 on: December 10, 2012, 12:51:34 PM »
It's real easy to go from not enough to too much and end up with a loose barrel, I've been doing them on the mill in .001" increments checking fit after each .001" cut, when I get close, I switch to .0005" increments between checks, end up with a perfect fit.

Tim
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Offline gcrank1

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Re: Barrel fitting question?
« Reply #8 on: December 10, 2012, 03:04:33 PM »
Glad that worked out Blu; I like to take measurements and calc too, just to find out if my thinking is on, but learned long ago that the true meaning of hand fitting is, well ,hand fitting ;D .
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"Halt while I adjust my accoutrements!"
      ><   ->
We are only temporary caretakers of the past heading toward an uncertain future
22Mag UV / 22LR  Sportster
357Mag Schuetzen Special
45-70  SS Ultra Hunter with UV cin.lam. wood
12ga. 'Ol' Ugly OverKill', Buck barrel c/w  SpeedStock  and swap 28" x Full bird barrel, 1974

Offline nanuk-O-dah-Nort

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Re: Barrel fitting question?
« Reply #9 on: December 11, 2012, 06:10:58 AM »
Quote from: quickdtoo on December 10, 2012, 12:51:34 PM
It's real easy to go from not enough to too much and end up with a loose barrel, I've been doing them on the mill in .001" increments checking fit after each .001" cut, when I get close, I switch to .0005" increments between checks, end up with a perfect fit.

Tim

Tim, I'd like to see your method. 
Do you have a pictoral online?
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Offline quickdtoo

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Re: Barrel fitting question?
« Reply #10 on: December 11, 2012, 05:19:37 PM »
I'll take pics of next one I do.

Tim
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