X4or5 for Lyman 5th edition. Something to keep in the back of your mind might be to go to Hogdgon Website for data concerning various loads (excellent website). Another thing is to keep your eyes open for the basic reloading manuals that are put out by manufacturers such as Allaint and Hogdgon. They have good information in them and you can usually get them for free. They don't replace the larger manuals like Lyman because the larger manuals are more extensive and often have procedural articles and descriptions of the various procedures for reloading.