Congratulations.
In a number of posts on this forum about loads you will see the members like to use .018 thick patches.
When reading these posts, keep in mind that most of them are talking about rifle loads.
While the use of a tight patch/ball combination is fine with rifles, where the stock can be placed against the ground it is usually not easily used in a pistol.
I recommend that you start with some .010, .012 and .015 thick patches in that order to save wear and tear from the heavy ball/patch starting pressures needed with the thick patches.
If a fired .010 patch looks burned where the ball contacts the bore then switch to the next thicker patch.
Often a pistol will shoot exceptionally well with the thin patches and they sure are a lot easier to load.
In a number of posts on this forum about loads you will see the members like to use .018 thick patches.
When reading these posts, keep in mind that most of them are talking about rifle loads.
While the use of a tight patch/ball combination is fine with rifles, where the stock can be placed against the ground it is usually not easily used in a pistol.
I recommend that you start with some .010, .012 and .015 thick patches in that order to save wear and tear from the heavy ball/patch starting pressures needed with the thick patches.
If a fired .010 patch looks burned where the ball contacts the bore then switch to the next thicker patch.
Often a pistol will shoot exceptionally well with the thin patches and they sure are a lot easier to load.