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Author Topic: Is there a practical limit to fitting a barrel?  (Read 601 times)

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Offline wreckhog

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Is there a practical limit to fitting a barrel?
« on: December 10, 2009, 03:30:16 PM »
Take your tightest barrel and tightest action. You can file the barrel until it fits. Take your loosest barrel and loosest action. Is there a limit to what you can shim? Or at some point, are you out of spec?
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Offline quickdtoo

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Re: Is there a practical limit to fitting a barrel?
« Reply #1 on: December 10, 2009, 03:40:11 PM »
The thickest shim I've installed was .026", but that was on a barrel that had been butchered by someone before I had it.

Tim
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Offline necchi

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Re: Is there a practical limit to fitting a barrel?
« Reply #2 on: December 10, 2009, 07:55:57 PM »
Quote from: quickdtoo on December 10, 2009, 03:40:11 PM
The thickest shim I've installed was .026",

Wow! and I quibbled over  a .004 or a .005, the darn .005 was too tight with the adhesive!
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Offline quickdtoo

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Re: Is there a practical limit to fitting a barrel?
« Reply #3 on: December 10, 2009, 08:24:06 PM »
Most barrels take a lot less, .004"-.010" probably would fix 90% of em.

Tim
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Offline zoner

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Re: Is there a practical limit to fitting a barrel?
« Reply #4 on: December 11, 2009, 02:16:57 AM »
I just did a 223.....004 made for a perfect fit....BTW the 2 part Gorilla epoxy is awesome stuff
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Offline necchi

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Re: Is there a practical limit to fitting a barrel?
« Reply #5 on: December 11, 2009, 04:23:57 AM »
 I've used the original Gorilla on several items, not this app though, a little tricky with it's expanding properties but it does have it's place. And just this summer I found Gorilla epoxy and tried it on some leather, worked like it should.
 But my experiance with fast set 2 parts epoxies of several brands is; That here in Minn with huge temp swings, the fast set epoxies can and usually do shatter in cold weather. The epoxy will stay stuck to each side of the glued item but comes apart at the seam.
 So I guess I'll stick with, the JB as recomended here in the faq's. Kinda afraid that a shim set in the summer at 80 will let loose during a simple loading at 10 during a november hunt. (knock on wood) It might not come out and cause a big headspace issue with lock up, but could change POI.
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Offline quickdtoo

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Re: Is there a practical limit to fitting a barrel?
« Reply #6 on: December 11, 2009, 05:31:09 AM »
I've been using SuperWeld on the last few barrels, it has over 3 times the compressive strength of JB Weld, link to it is in the barrel fitting info. I wouldn't recommend a product that doesn't provide strength specifications which I didn't find on the Gorilla website.  :-\

Tim
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Offline Fred M

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Re: Is there a practical limit to fitting a barrel?
« Reply #7 on: December 11, 2009, 12:44:01 PM »
I agree with Tim, that Superweld 2 by Goop is really good I applied it without a shim to close a 0.005" gap and so far it has not moved. Super accuracy was restored. Don't know how long it will last, but it is so easy to use and sets up to 36000psi in a day.
It is better than the Devcon Steel putty I have used before.

There are no Handi's that have that much back thrust on the hinge pin, me thinks?
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Fred M.
From Alberta Canada.
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