First off I'm new to reloading,my shield 40 liked 180gn fp which was loaded with 5.5gn of wsf. When i loaded some hornady xtp 180gn with 5.4gn of wsf it did not shoot very well both loads are hogdon starting loads. My ? is do i increase powder for the xtp's and if so can you give me a starting point to save me a little time. I know all guns shoot different just trying to get an idea of what other shields are shooting best. Thanks