Cool, thanks. There's lots of meat on my octogon barrel. I have too many other projects at the minute, but I might call them anyway.
This gun is shooter grade as the tang was broken and brazed at one time. I hunted with it last year and it's super cool, but only has the legs for about 100 yds.
Relining barrels really depends on two things. The first is how much meat does the liner have???? If it is to thin, you will have issues, especially in the chamber area.
You say you have enough meat on the barrel. OK, I have bought liners from the supplier you mention and they are great liners. In your case, I would want to use one of his .625 in OD liners That means the liner would need to be threaded for the receiver of your rife, if memory serves. I would have to look that one up. That means the barrel needs to be drilled out to fit over the liner and either cold soldered in place or have the tolerances between the liner and barrel shell filled with Titanium Putty. Either works well. Titanium putty has a compression strength of 23,000 psi, which is very similar to solder.
If the tolerances between the barrel shroud and liner are to great, whichever you use, will compress eventually and you will get a bulged barrel. Liners shouldn't be used in barrels that are required to work over 30.000 psi unless, they have enough material to take up the pressures created during the firing process.
A few years ago, one of the fellows in Salmon Arm, shooting black powder muzzle loaders, had a lined barrel fail on him. This particular fellow is very careful to keep his pressures low. His liner was soldered into place. One issue with solder, it can leave unseen voids, which are weak areas.
Liners for 22rf, 30M1 Carbine work well, same with similar cartridges. There was a fellow a few months back that had a 357 with a four inch bbl which was lined. The forcing cone collapsed because it didn't have enough material to direct the force of the bullet into the center of barrel. It had been sleeved all the way through, rather than using a large enough diameter sleeve to thread for the receiver and slipping the drilled out barrel over the sleeve. Whoever did the job, made it look very good. I can see why he did what he did but it just isn't strong enough.
By the way, there is a company in the US, called T.J.'s, out of Alexandria Virginia. They make up their barrels on demand and take about 3 weeks to ship them. They don't accept credit cards but to take money orders made out in US funds.
They will make up a liner for you with bore diameters ranging from .372-.379 or .368-.375. The OD of the liner can be up to .625. They don't list the .625 OD as being available but for an extra $5 for material, they will do it.
Their phone number is 859-635-5560.
Their barrels are chrome moly and hammer forged. Very good liners. The bores are very consistent.
