Sorry, but I forget the rifle involved. Unless it is something like the AR-15 where the barrel is (or should be) a "drop in", rebarrelling is not as easy as some folks make it sound.
If it is a sporting barrel (it has no sights or gas port that has to be at a certain point), the process is fairly easy. You put the barrel in the barrel vise, put the action wrench on the action and tighten up. Basically plumbing. Then, if the barrel is chambered, you check headspace. Since a new barrel is short chambered, you need to use a finish reamer to set the headspace in a "cut and try" operation, or use a pull through reamer. If the barrel is not chambered, you need a roughing reamer to make the first cut, then a finish reamer to complete the job. Obviously, you need GO and NO-GO headspace gauges.
If the barrel is military with a gas port, splines or installed sights, you have to first make sure the barrel lines up when it is properly torqued down. If it doesn't, then the shoulder has to be taken down or "rolled" so the barrel goes tight with everything in alignment. In the worse case, you might need to shim it. Then comes the headspacing. If the barrel is used and fully chambered, but has too great headspace, then you have to play around with bolts until you find one that will bring headspace in spec.
So what does all this tell you? Unless you want to buy a whole lot of pretty expensive equipment, or you plan to do a lot of rebarrelling jobs, take the rifle to a gunsmith.
Jim