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Years back, my gunsmith hunting partner was working with his neighbor--a trap shooter--to move the pattern on his gun. Don't know whether it involved filing. However . . . if you file a gun that's threaded for choke tubes, doesn't that mess up the threads and make it impossible to put the tube back in? Or are you talking about filing the tube?

Builder, I'm hoping your problem is one of a bad tube. That makes the solution a whole lot cheaper and easier. Assuming you don't have any recourse from FAIR.

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Originally Posted By: L. Brown
Years back, my gunsmith hunting partner was working with his neighbor--a trap shooter--to move the pattern on his gun. Don't know whether it involved filing. However . . . if you file a gun that's threaded for choke tubes, doesn't that mess up the threads and make it impossible to put the tube back in? Or are you talking about filing the tube?


And they let you own a gun ?

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Larry, filing the tube however I am concerned that the choke tube is too thin to have any effect.

FAIR will not stand behind their poor quality control. There are several members here and in the 16g. society purchasing or considering a purchase for the FAIR Iside. I wish them well.


So many guns, so little time!
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Maybe you are looking at the wrong end of the gun.
A 1/4" more cast might give you what you want.

Unless you always sight down your ribs, and stack beads and what-not.
I just point mine.

A little more cast would be an easy fix.


Out there doing it best I can.
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Just shoot it and if you miss you'll have a good excuse.

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Originally Posted By: builder
Larry, filing the tube however I am concerned that the choke tube is too thin to have any effect.

FAIR will not stand behind their poor quality control. There are several members here and in the 16g. society purchasing or considering a purchase for the FAIR Iside. I wish them well.


A choke tube that is too thin would indeed be a big problem. You would need to file a lot, so it won't work for you if you don't have enough metal. The cheap flush mount Carlson chokes that I have tried had enough metal to make a significant difference, but I don't know if they make one to fit your gun.

Filing the choke, or rather the choke tube, is a last resort type thing to try to make an otherwise useless gun at least somewhat usable. But maybe it's usable as is; just shoot only right to left targets with the left barrel and you will have a built in lead. smile

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I would not worry much about regulation patterns without a very long run testing under actual target conditions.

Stand behind a trap throwing dead straight easy rising targets you are likely to break 15-20 yards out. Depending on the choke close enough to inkball the birds. Shoot 50 out of each barrel, hitting if possable all 100 targets.

Then reflect on targets Break, were they solid or was there a bias one side of the bird. You may find the gun does what its suposed to do just fine .

Boats


Last edited by Boats; 11/20/18 12:47 PM.
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Builder, I was curious as to the thickness of the choke tubes I've worked with, so I dug them out, measured them, and made a picture of a couple:



Sorry that it's not a better pic, but my phone camera is not ideal for close-ups. The tube on the right is a Brileys tube they made for one of my guns. It is marked to move the pattern 5", though as I remember it moved my turkey load further than that. I measured it with calipers to be .044 on the wide side and .030 on the narrow side. That second measurement is something of a guess because it is dependent on how far I slide the caliper in; it gets thicker towards the base of the tube.

The tube on the left is a Carlson's .575 turkey choke. It measured .050 originally, but I have taken it down to .040 on the side I filed. The gun was off by 8" at 40 yds with my turkey loads, and this much filing was required to center it. I lost about 20% of the pattern density inside a 10" circle at 40 with this much filing. It was a very usable gun with this tube, but I wasn't satisfied losing 20% and I eventually set it up differently and no longer use either of these tubes.

One thing that I have found in filing is that it takes less of it to move a heavy turkey load than it does a field load. I'm not sure why that is, but it happens consistently. If you take a file to one, you will be trying to make it center one load. It probably won't center other loads that have different recoil.

Last edited by coosa; 11/20/18 12:59 PM.
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Originally Posted By: ClapperZapper
Maybe you are looking at the wrong end of the gun.
A 1/4" more cast might give you what you want.

Unless you always sight down your ribs, and stack beads and what-not.
I just point mine.

A little more cast would be an easy fix.


Hmm. He has one barrel (or one barrel with one choke tube) that's right on as it is. 1/4" cast MIGHT correct the other barrel . . . but it would affect BOTH barrels . . . moving the one that's now OK off target.

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I doubt having his patterns 4" different between sides would make any difference whatsoever.
Obviously well within the factories specifications, and no one would ever notice when he sells the gun.


Out there doing it best I can.
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