Finally used a real barrel. I had a 300rum takeoff I decided to cut and rechamber to a 300wsm. 1. Dialed in the muzzle od in the spider on the left side of the headstock. 2. Dialed in the chamber in the 4 jaw 3. Cut 1.5” off the chamber with a parting tool 4. Cut the shank 1” long x 1.065 to fit the recoil lug. Iscar carbide insert @ 1100rpm. 5. Touched up shoulder and trimmed face to make it .950 and made 45deg chamfer on face 6. MISTAKE: Threaded with cheap insert @ 180rpm. Had to sand threads down to 1.058 to fit the action because I forgot to cut the shank to 1.060 for threading 7. Cut bolt recess with a boring bar. Turned out .706 x .150. 8. Didn’t chamber since I don’t have a go gauge yet. I’ll do that and post pics later. Forgot my phone while in the shop, so here are just the finished pics.