Cooey barrel swap

[got to go]

I have a good receiver on one rifle and a bad barrel on another. Can l swap barrels without a barrel vise or do l need to search for a gunsmith

 

[tiriaq]

What model?

 

[got to go]

Thier both a Model 75 Cooey

 

[got to go]

I was thinking maybe put them in the freezer then wrap the barrel with leather and then warm the receiver with a heat gun on low and check the temperature with a infrared thermometer to about 250 degrees Fahrenheit. And then cross my fingers

 

[guntech]

Basically...

Make a bushing that fits over the barrel and butts up against the action. Remove the big bottom screw that may be holding the barrel in place. Make a mandrel that slides in the action. Drive the barrel out.

Headspace needs to be checked after swap... The bolt should make contact with the barrel.

 

[trevj]

I was thinking maybe put them in the freezer then wrap the barrel with leather and then warm the receiver with a heat gun on low and check the temperature with a infrared thermometer to about 250 degrees Fahrenheit. And then cross my fingers

This plan of yours pretty much shows a complete lack of understanding of how heat flows between objects that are pressed together.

The temperature that one part is, is the temperature the other will be.

Especially if you apply the heat gun slowly.

Honestly, I would not bet on success even if you used a couple oxy-acet torches and could heat the outside up at any speed slower than instantaneous.

 

[got to go]

So, the barrel is a press fit, not screwed on ?

Basically...

Make a bushing that fits over the barrel and butts up against the action. Remove the big bottom screw that may be holding the barrel in place. Make a mandrel that slides in the action. Drive the barrel out.

Headspace needs to be checked after swap... The bolt should make contact with the barrel.

 

[tiriaq]

Not screwed in. Pressed, secured by the big bottom screw. May be pressed tight, maybe not so much. You will have to push or press the receiver off the barrel or barrel out of the receiver. Once you have pushed the good barrel into the good receiver properly indexed, you may or may not find that one or the other bolt fits. The bolts were hand fitted when installed, and not intended to be interchanged.

 

[got to go]

Thanks very much. I'll see what l can do.

Not screwed in. Pressed, secured by the big bottom screw. May be pressed tight, maybe not so much. You will have to push or press the receiver off the barrel or barrel out of the receiver. Once you have pushed the good barrel into the good receiver properly indexed, you may or may not find that one or the other bolt fits. The bolts were hand fitted when installed, and not intended to be interchanged.