S |
M |
T |
W |
T |
F |
S |
|
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
31
|
|
|
1 members (Tim Wolf),
236
guests, and
6
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
Forums10
Topics38,518
Posts545,703
Members14,419
|
Most Online1,344 Apr 29th, 2024
|
|
|
Joined: Jan 2002
Posts: 9,767 Likes: 757
Sidelock
|
Sidelock
Joined: Jan 2002
Posts: 9,767 Likes: 757 |
Jose, I would think silver solder would be a better choice. You would need to be careful, as the barrel tubes are held into the monobloc with silver solder, but, if worse came to worse, you would take it all apart, clean the solder joints in the tubes and resolder the whole thing back together. The gun could probably stand a rib relay anyway, at this junction in time.
I would be hesitant to use glue to hold the sub tubes into the bores of the old barrels.
Good luck.
Best, Ted
|
|
|
|
Joined: Jun 2008
Posts: 5,536 Likes: 169
Sidelock
|
Sidelock
Joined: Jun 2008
Posts: 5,536 Likes: 169 |
Graded approach The liner can not exit the muzzle, they are only 18 inches long and fitted to the bored out barrel.
The liner is held from exiting the rear of the barrels by the breech face
So try the Locktite and if the liners should move then go with the silver solder That will require great caution and re-bluing
Mike
Last edited by skeettx; 08/07/23 11:44 PM.
USAF RET 1971-95
|
|
|
|
Joined: Jan 2004
Posts: 6,740 Likes: 433
Sidelock
|
Sidelock
Joined: Jan 2004
Posts: 6,740 Likes: 433 |
Rifle liners are held in place with Locktite. Soldering is almost never done in the last couple of decades due to the improvement in adhesives. Shotgun liners should be even easier to glue in place.
_________ BrentD, (Professor - just for Stan)
|
|
|
|
Joined: Jan 2002
Posts: 9,767 Likes: 757
Sidelock
|
Sidelock
Joined: Jan 2002
Posts: 9,767 Likes: 757 |
Rifle liners are held in place with Locktite. Soldering is almost never done in the last couple of decades due to the improvement in adhesives. Shotgun liners should be even easier to glue in place. You might want to read about how a good gunsmith does a similar repair operation. It would seem this repair was done fairly recently ( less than a couple decades ago). https://vicknairgunsmithing.blogspot.com/2022/12/correcting-excess-headspace-in-parker.htmlBest, Ted
|
1 member likes this:
keith |
|
|
|
Joined: Jan 2004
Posts: 6,740 Likes: 433
Sidelock
|
Sidelock
Joined: Jan 2004
Posts: 6,740 Likes: 433 |
Rifle liners are held in place with Locktite. Soldering is almost never done in the last couple of decades due to the improvement in adhesives. Shotgun liners should be even easier to glue in place. You might want to read about how a good gunsmith does a similar repair operation. It would seem this repair was done fairly recently ( less than a couple decades ago). https://vicknairgunsmithing.blogspot.com/2022/12/correcting-excess-headspace-in-parker.htmlBest, Ted I've no doubt it works, but it won't look or perform one bit better than what other really superb gunsmiths do.
_________ BrentD, (Professor - just for Stan)
|
|
|
|
Joined: Feb 2008
Posts: 11,345 Likes: 391
Sidelock
|
Sidelock
Joined: Feb 2008
Posts: 11,345 Likes: 391 |
Ted, that Parker chamber repair by Dewey Vicknair was amazing. But I'm not surprised.
I think either solder or the correct adhesive should work if the fit of the sub-gauge tubes to the bore is close. I used a Loc-Tite retaining compound to replace the hardened valve seat in a lawn tractor engine, and even with that sort of heat, it never moved in roughly 15 years. I merely roughened the loose valve seat with a small carbide bit in a die grinder and did the same to the recess in the block. 18" long tubes have many times more contact area. And for that same reason, if Jose chose to go with solder, I'm sure plain old 60-40 tin lead solder would be more than strong enough. Plus there would be less risk of melting the solder joints in the monobloc.
I have no experience with the very low melting point Tin-Bismuth solder alloys, so can't comment.
A true sign of mental illness is any gun owner who would vote for an Anti-Gunner like Joe Biden.
|
|
|
|
Joined: Jun 2006
Posts: 2,990 Likes: 302
Sidelock
|
Sidelock
Joined: Jun 2006
Posts: 2,990 Likes: 302 |
He’s essentially making a chamber mate from scratch. Why doesn’t someone with a machinist’s talent get out their mics and help the man out.
There’s no reason to reinvent the wheel here.
Just saying
Might be just the thing for the diy gunsmithing section.
Out there doing it best I can.
|
|
|
|
Joined: Jun 2008
Posts: 5,536 Likes: 169
Sidelock
|
Sidelock
Joined: Jun 2008
Posts: 5,536 Likes: 169 |
The old gauge 12 gauge chamber and pitted barrel bored out a bit for 18 inches Then a THIN WALL insert is fabricated and placed in the barrel to give a new 20 gauge chamber, forcing cone and leade configurations. https://chiappafirearms.com/product.php?id=565The extractor must be modified to 20 gauge
Last edited by skeettx; 08/08/23 10:02 PM.
USAF RET 1971-95
|
|
|
|
Joined: Jan 2002
Posts: 306 Likes: 2
Sidelock
|
OP
Sidelock
Joined: Jan 2002
Posts: 306 Likes: 2 |
Thank you, as always, for your good advise!
Probably the "ortodox way" to fix the inserts is silver soldering, but I do not know a person that do the procedure nor I have the knowledge to do it myself, so I will try the "Locktite method"
I think I am still several weeks away of the "final product", buy I will continue to work in the project as times allow me.
Best regards,
Jose
Jose M. Fernandez
|
|
|
|
Joined: Mar 2011
Posts: 4,085 Likes: 478
Sidelock
|
Sidelock
Joined: Mar 2011
Posts: 4,085 Likes: 478 |
A choke maker that has done work for me over the years before he had the .410 tap would sleeve chokes and secure them to the barrel with Loctite. I had one made up for a friend over 10 years ago and it still holds fast. Gil
|
|
|
|
|