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  #16  
Old 08-18-2013, 10:06 PM
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Mossberg technical support is in business



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No other sight on RimfireCentral has this. This is going to be fun. You can all thank tfrank for a dream come true. Regards, Rick.

Last edited by sakorick; 08-18-2013 at 10:13 PM.
  #17  
Old 08-18-2013, 10:25 PM
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This is from two years ago! Where the heck,was I

Great deal!!!

Thanks Frank
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  #18  
Old 08-19-2013, 01:21 PM
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EXCELLENT! Long time comming. Thanks Frank and Rick.
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  #19  
Old 08-23-2013, 10:24 AM
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tfrank - While this is from Havlin's website, https://www.havlinsales.com/, it may be helpful to include this in the sticky. Just a thought.

James





1. Models 26B, 26C $18*
2. Models 42A, 42B, 42C, 42M (all variants), 43, 43B, 44US (all variants) $18 (will not fit older Model 42 pre-master action or “long-bolt” rifles).
3. Models 45A, 45B, 46A, 46B or 46M (all variants) $18 (will not fit older 45 or 46 pre-master action or “long-bolt” rifles). *not always in stock
4. Models 140, 142, 144 (all variants) $18
5. Models 146B, 146B(a) $18 * not always in stock
6. Models 320, 340, 342, 346 (variants that take new style pin) $18
7. Models 50, 51, 51M (all variants) $18 *not always in stock
8. Models 151K, 151M (all variants) 152, 152K, 250K $18
9. Models 250C, 350K, 350KA, 351K, 351KA, 352, 352K, 352KA, 352KB $18
10. Models 250CA, 250CB, 251, 350KB, 351KB, 351KC, 352KC, 353, 377, 380 $18
11. Model 400, 400A, 402, 402A “Palomino” $18
12. Models 620, 640, 740 “Chuckster” (variants that take new style pin) $18
  #20  
Old 08-23-2013, 10:46 AM
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That info...

That info is already in the sticky with the green arrow!!!
God Bless, Frank.
  #21  
Old 09-22-2013, 02:19 PM
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Hello, new to the forum here. Great info. My problem is I have a Mossberg 46B-B that fails to fire. I check the rims of the .22 and they are not dented. I had replaced the firing pin previously as it had broken. The rifle appears to function properly feeding and ejecting just not firing. Any help would be appreciated.
  #22  
Old 09-22-2013, 08:40 PM
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???????

Did it fire before the FP broke??? Do you have the correct FP??? Did you clean out the channel the FP rides in??
  #23  
Old 09-25-2013, 08:15 PM
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Sounds like it was...

...left cocked in a closet for 20 years.
  #24  
Old 06-02-2014, 06:22 PM
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Barrel Change 142A

Looking for info on changing out a barrel on a 142A. Do I need a set of Go/No Go Gauges to check the headspace? If the Headspace is off how do i recify the problem? Thanks
  #25  
Old 06-02-2014, 09:23 PM
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Smile A set of...

Quote:
Originally Posted by Mainah79 View Post
Looking for info on changing out a barrel on a 142A. Do I need a set of Go/No Go Gauges to check the headspace? If the Headspace is off how do i recify the problem? Thanks
A set of go/no go gauges would certainly be nice but shouldn't be necessary. I use a specially ground set of feeler gauges!!! On your 142A the headspace is typically controlled by the depth of the rim recess in the bolt face. There are also shims that can be installed in the bolt which will move the front part of the bolt closer the barrel. The bolt will have to be disassembled to install those shims. The last thing that you might do is set the barrel back but then you have to deal with what I consider to be somewhat serious modifications. Below is what your barrel will look like if you remove it from the receiver. This picture was done for another post quite a while ago, but fits here perfectly with what I am trying to illustrate. You will notice a dimple drilled in the underside of the barrel, the hold-down stud threads through the receiver and then moves up into that dimple to positively lock the barrel in place. This is in addition to the two sections of straight knurling that produce a mild to really tight press fit, depending on how manufacturing tolerances stack up. I think???

Below is the barrel from a 140K that I relined to 17 Mach2. This barrel was set back and you can see SOME what I felt I had to do to prevent that locating dimple from pulling the barrel back to its original position. The smaller hole to the right of the hold-down stud hole is for a set screw that bears against a bevel, that at this point was not yet filed into the bottom of the barrel. The purpose of the set screw and the filed bevel is to pull the barrel tight against the receiver, then the hold-down stud was tightened. So the barrel is retained 3 ways... by the knurls, the set screw and the hold-down stud. So now I think you see why I consider setting the barrel back as the least appealing method of eliminating excessive headspace. Unless of course it is coupled with a new chamber... say a MATCH chamber!!!

Hope this answered your questions!!!
God Bless, Frank.
  #26  
Old 06-02-2014, 10:14 PM
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Thanks!

Thanks for taking the time to give me that information Frank, that will be very useful! I guess the only other question I might have is if I do need Shims, where would I find them? Thanks
  #27  
Old 06-04-2014, 04:21 PM
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Smile You will...

Quote:
Originally Posted by Mainah79 View Post
Thanks for taking the time to give me that information Frank, that will be very useful! I guess the only other question I might have is if I do need Shims, where would I find them? Thanks
You will have to do a search on this forum to find that out. It has been talked about and discussed a number of times so the info is here. All you have to do is find it!!!
God Bless, Frank.
  #28  
Old 10-01-2014, 07:20 PM
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No. 4 Windage adjustment

What is the thread spec (tpi) for the No. 4 Windage (and Elevation) screws? The thread diam. appears to be No. 8 and tpi does not measure as -40, -42 or -44.

Guess I could just buy parts I need, but where's the fun in that.

Thanks,

JOHNC
  #29  
Old 10-02-2014, 10:42 AM
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Quote:
Originally Posted by blkbird513 View Post
What is the thread spec (tpi) for the No. 4 Windage (and Elevation) screws? The thread diam. appears to be No. 8 and tpi does not measure as -40, -42 or -44.

Guess I could just buy parts I need, but where's the fun in that.

Thanks,

JOHNC
The elevation and windage are both 8-50 tpi. But I use a 8-48 tap and die to rebuild mine and they work just fine. Also the thread for the aperture is 8-40
  #30  
Old 10-02-2014, 12:35 PM
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Mossberg Technicial Support!!!!

Headspace shims for Mossberg Numrich part #is
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