Hornady publishes reloading data for all of its cartridges and projectiles, including the XTP bullet, in the Hornady Reloading Handbook. The current edition of the handbook can be purchased from the Hornady website or can be downloaded as an eBook from the iTunes Bookstore and the Kindle Bookstore.
The Hornady Reloading Handbook suggests suitable bullets and powders for each common cartridge type. Every reloading combination includes a chart linking bullet velocity to specific powder weights. In addition to the reloading charts, the manual describes the effects of environmental conditions and explains internal, external and terminal ballistics to help shooters make successfully reloading choices.