Easiest way to cut pin grooves for RF barrel retention

[Shawnba67]

I am playing around with a super cheap rf rebarrel project. The barrel was pinned into place. The new barrel will need to be affixed the same way. What options do i have to create grooves for the retention pins? I worry that installing barrel and then trying to drill out the grooves will remove metal from the pin hole in the action. The action is not what one would call steel. Mossbeg plinkster 702 i cant make it any worse so i figure why not.

 

[Jon Leary]

Just use red loctite

 

[DaveTooley]

I know one gun maker that use this to install sights and barrel bands. It stands up to caustic bluing.

https://www.amazon.com/Loctite-Impact-Resistant-Adhesive-Firearms/dp/B0CHJY2H4T/ref=sr_1_3?keywords=loctite+380+black+max&qid=1707254969&sr=8-3

 

[zeke06]

I wouldn't even waste your time with retaining pins. Either press it in with about .002 interference fit or use Loctite 620 (green) They suggest .003-.010 but I preferer around .0015. There are a lot of Anschutz done this was with great success. Red Loctite would probably work just fine but green is specifically a retaining compound.

 

[Tad_Earhart]

Any of the retention loctite's will do what you need here. I usually use 648. They make a couple different ones for different fitments and temp ranges. I would not go with one of the high heat variants because if you did ever want to remove the barrel from the action, heat is the only way after the loctite application as far as I know. The 648 will loose bond strength somewhere between 250-300 degrees from what I have seen.

This would not be my first choice, but I have seen some glued into place with common epoxies. I am not sure of the process they went through to do it but they have held up fine.

Tad

 

[akajun]

I had a Norinco jw-15 ( copy of a cz) with a bad barrel. I simply threaded the receiver and chambered / threaded the tenon as you would a normal barrel. Worked well and is very accurate. The pin jobs are done to keep costs down, at least on the cheaper guns. Threading is an improvement imho.

 

[kendog]

You could cut a groove in the tenon with a radius tool like an o-ring groove cutter at the pin location. I do this for looks when barreling Anschutz 54's and 64's. Loctite the barrel in and the pin as well.

 

[kendog]

You could cut a groove in the tenon with a radius tool like an o-ring groove cutter at the pin location. I do this for looks when barreling Anschutz 54's and 64's. Loctite the barrel in and the pin as well. Comes apart easy enough when you want it to.

 

[padom]

I did this with custom Bartleins years ago on CZ455's that have the grooves cut in the factory barrels for the barrel retention screws..

Didn't cut any grooves in the custom barrels, they were all glued in with Loctite. They aren't coming out or loose on their own with good machining tolerances of the tenon and loctite. They had to he heated up and tapped out with a wood dowel when removing.

Those setups shot lights out. Just glue it. It's a rimfire....

 

[Ggmac]

I had a Norinco jw-15 ( copy of a cz) with a bad barrel. I simply threaded the receiver and chambered / threaded the tenon as you would a normal barrel. Worked well and is very accurate. The pin jobs are done to keep costs down, at least on the cheaper guns. Threading is an improvement imho.

Are you saying your jw-15 was pinned ? I’ve got 2 both seem to be threaded . I’m getting ready to rebarrel one . Ive checked for pins , obviously didn’t find any . Startto remove the barrel but stopped when I realized the threads were metric ( from another source )

 

[akajun]

Both of mine are
I’m sure they were made in different factories with different measurements and methods

 

[Ggmac]

Thanks .