Barrel liner thickness?

[awp101]

How thick are barrel liners? Can I take a .30 cal barrel and have it lined for a .22 centerfire?

[mescalero1]

what kind of .22 centerfire?

[awp101]

Anything from say .218 Bee, .219 Wasp, .22H to .225 Win.

[Mike Rintoul]

I think you are referring to a barrel sleeve. What happens, in short, is that the bore is reamed smooth and a tube that contains the chamber and rifling diameter of the new caliber is fused into the smooth tube you've created. The tubes can be turned down to very small diameters, and of course made to fit the "hole" you've reamed in the original barrel. I have always heard of barrel liners as being an insert that reduces that original bore diameter by a few thous but does not add substantially to the wall thickness or weight.

[jdad]

This guy is a master at it. http://www.johntaylormachine.com

If you need a more credible reference PM Marlinman93. John does barrel work on regular basis, for him.

John will also promptly return all your emails.

[awp101]

I think you are referring to a barrel sleeve. What happens, in short, is that the bore is reamed smooth and a tube that contains the chamber and rifling diameter of the new caliber is fused into the smooth tube you've created. The tubes can be turned down to very small diameters, and of course made to fit the "hole" you've reamed in the original barrel. I have always heard of barrel liners as being an insert that reduces that original bore diameter by a few thous but does not add substantially to the wall thickness or weight.

Could be, I've always heard them called barrel liners since a lot of times they are used to reline a worn bore.

I'm curious if I could use one to reline a .30 cal barrel down to a.22 centerfire or if it would be too small to fit. I don't know if they have a wall thickness of just a few thousandths or a wall thickness of a quarter inch.

If I can, I have a plan. If not, it's new barrel time.

[mescalero1]

Yes,
Do-able, just don't get crazy and overpressure it.

[awp101]

It just dawned on me I made the question a lot harder than it needed to be. The outside diameter is what I need to know. Does it vary by liner caliber and/or manufacturer?

[mescalero1]

I think so.

[Marc]

Brownells carries Redman liners. Go to Brownells.com and look at the specs. Generally relining is only done on low pressure cartridges or straight wall cartridges. You don't want to cut the chamber through the liner. For high pressure cartridges you probably need to do what Mike is referring to.

[Ysabel Kid]

I think you are referring to a barrel sleeve. What happens, in short, is that the bore is reamed smooth and a tube that contains the chamber and rifling diameter of the new caliber is fused into the smooth tube you've created. The tubes can be turned down to very small diameters, and of course made to fit the "hole" you've reamed in the original barrel. I have always heard of barrel liners as being an insert that reduces that original bore diameter by a few thous but does not add substantially to the wall thickness or weight.

How are the two "fused"?

[Leverluver]

The low pressure ones I've seen done used loctite type material for mounting bearings in a loose holes.

[awp101]

To bring this back to life for a minute, there's a thread where someone is asking about 7-08. Rather than hi-jack that thread, I'll hi-jack my own.

Can a .308 be relined to 7-08? I know the chamber isn't exactly the same, how would that be handled?

[AJMD429]

This guy is a master at it. http://www.johntaylormachine.com
If you need a more credible reference PM Marlinman93. John does barrel work on regular basis, for him.

To heck with the sleeves and liners - I want one of THESE things he makes...!


http://www.johntaylormachine.com/53.0.html

[Pete44ru]

The O.D. of most .22 cal barrel liners is 5/16", and the instructions call for drilling the donor barrel with a 5/16" bit prior to epoxying or soldering the liner in place.

.

[Leverdude]

I think you are referring to a barrel sleeve. What happens, in short, is that the bore is reamed smooth and a tube that contains the chamber and rifling diameter of the new caliber is fused into the smooth tube you've created. The tubes can be turned down to very small diameters, and of course made to fit the "hole" you've reamed in the original barrel. I have always heard of barrel liners as being an insert that reduces that original bore diameter by a few thous but does not add substantially to the wall thickness or weight.

How are the two "fused"?

Theres a few ways YK. They used to solder them. John Taylor uses high temp loktite, I'v heard others epoxy them in. At any rate if John Taylor does it you cannot tell other than theres a bright shiny chamber & bore.

As far as if you can put a 22 cal liner in a 30 cal barrel I dont know for sure but I'd think so.

[Leverdude]

The O.D. of most .22 cal barrel liners is 5/16", and the instructions call for drilling the donor barrel with a 5/16" bit prior to epoxying or soldering the liner in place.

.

Wouldn't they need to be bigger around for a 22 centerfire?

[Pete44ru]

Yes, they would be, leverdude - Which is why the liners are for .22 rimfire cartridges, and for relining to .22RF.

The only solution(s) to a shot-out/ruined .22 CF barrel would be to either rebore it larger or replace it - IIRC, a liner made large enough to also accommodate a large chamber is properly called a "barrel".

.

[Leverdude]

Yes, they would be, leverdude - Which is why the liners are for .22 rimfire cartridges, and for relining to .22RF.

The only solution(s) to a shot-out/ruined .22 CF barrel would be to either rebore it larger or replace it - IIRC, a liner made large enough to also accommodate a large chamber is properly called a "barrel".

.

Good answer! BTW I wasn't being a smart ***, I figured they might make them at least for the hornet or 218Bee ect, a 22/250 or similar is another story. I had a 25/20 lined & the liner was plenty thick enough to rechamber.

[Pete44ru]

[ I wasn't being a smart ***, ]

I didn't take it that you were, pardner - I was jes being my usual jerk self.

I do thet, sometimes - when I'm off my meds.

.

[Leverdude]

[ I wasn't being a smart ***, ]

I didn't take it that you were, pardner - I was jes being my usual jerk self.

I do thet, sometimes - when I'm off my meds.

.

No sweat, just these plastic boxes fog up the subtleties of conversating sometimes.

[marlinman93]

Liners for .22 cal. come in either 5/16" or 3/8", and either wil;l work in a .30 cal. bore. A liner for .22 CF is possible, but not for every CF caliber. Some work at pretty high pressures, and a liner is not a great idea for those.
If you email John Taylor at his webiste he can let you know what is possible. If John wont do it, I wouldn't even consider it. He is a pro and wont endanger you or his livelihood.