The PM 1340 GT is an excellent barrel turning lathe. To add to @pontiac428 suggestion of The Complete Illustrated Guide to Precision Rifle Barrel Fitting by John Hinnant, also look at Chambering Rifles for Accuracy by Fred Zeglin and Gordy Gritters. Grizzly sponsored a DVD of Gordy Gritters which follows Gordy's section of the book. Worth buying if you're a visual learner.