Using bare lead bullets causes pretty bad cladding in the barrel, and renders Glock's warranty void.
Use only jacketted bullets (FMJ or TMJ) or in a pinch you can use PLATED bullets.
Since you are shooting a G23, you should buy .40S&W bullets (or 10mm bullets, same thing) for reloading.
If you are asking for a recipe, it will depend on the bullet you are using and the gunpowder you are using.
There are a lot of steps to prepare, and a number of very important things to keep in mind....are you new to reloading?