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Barry McGee's Custom 2300

Cothrane stainless tube, left handed breech, power adjuster,
Lothar 10" barrel, H.P.A.sports co2 cap, Clague ldc,1701 trigger group,
Stace trigger, Rick Andres grips and a Mueller quick shot reflex sight.

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Can a bigger screw be used to mount the breach...

August 6 2012 at 7:25 AM

Andy  (Login airgunandy)
Crosman Forum Member
from IP address 206.208.93.60

...of a 13xx or 22xx gun? You know, the little one in front of or under the bolt?
I have a 2200 that I'm contemplating using the pump tube and parts for my 1377 rifle conversion. The only #4 taps I see locally are for coarse threads. The breach screws are fine thread aren't they? Has anyone tried a #6 screw?

Thanks!
Andy

I plink, therefore I am.

 
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AuthorReply
eJames S
(Login jamesinadvance)
Crosman Forum Member
66.226.62.189

I have used a #5, after reshaping the head

August 6 2012, 8:08 AM 

I would not use the commonly available 6X32 the thread is to coarse, there just isn't enough "meat" in the tube for a larger screw . Smaller taps and screws are available through industrial suppliers and hobby shops they are just not commonly available due to the small volume of sales,
If you need a larger screw due to a damaged thread I would reccomend a 5X44 or a 5X40 these are available through McMaster Carr at:
http://www.mcmaster.com

They also carry a 6X48 screw but I'm not sure if the head of this screw can be modified enough to fit the guns in question without modifying the breech itself which is something I would not want to attempt.



James S

 
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Anthony R
(Login fivestar45)
Crosman Forum Member
166.248.4.186

Andy You've

August 6 2012, 12:10 PM 

been involved with these 22xx platform guns for a while now, so my advise would be to bite the bullet and buy a 4/48 tap from one of the machine equipment suppliers, as in all probability you'll need it more than once. You can re-drill and tap the tube for a #5 or #6-48 but that tap isn't east to find either and going to a courser tap won't get many threads in a 1/16" thick tube wall. And after that you will have to try to keep the new larger screw head size from being in the way. If you have a problem finding a 4-48 tap, drop me a note and I'll give you a supplier.

 
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MIke T.
(Login TKO22)
Crosman Forum Member
68.15.228.128

I have a extra 4-48 tap....

August 6 2012, 5:25 PM 

you can use, then pass it around to those that might need it.

This comes up several times a year on here. Maybe we all can use it as a "passaround loaner" tap. It's quite delicate, but it's the best one available and easily cuts the hardest Stainless Steels.

Let me know.

MIke T.
TKO - Omaha, NE USA
402-889-9222
www.tko22.com

 
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Anthony R
(Login fivestar45)
Crosman Forum Member
69.22.251.234

Great Idea Mike..............n/t

August 6 2012, 7:35 PM 


 
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Andy
(Login airgunandy)
Crosman Forum Member
206.208.93.60

Thanks guys.

August 7 2012, 5:58 AM 

I'll see what I can come up with. I may take Mike up on his offer.

I plink, therefore I am.

 
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Trevor
(Login Dnadnnoid)
Crosman Forum Member
98.232.166.154

i don't get it..

August 7 2012, 7:13 PM 

why bother with the trouble of passing around a tool that everybody needs when they're only a few bucks on ebay? just buy your own...

 
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Andy
(Login airgunandy)
Crosman Forum Member
65.190.155.55

Thanks!

August 7 2012, 8:06 PM 

There are a bunch of them!

I plink, therefore I am.

 
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