walther mod ppk

Hi all, I'm new to this forum, and a new Walther PPK owner. I recently purchased a Interarms PPK in good condition. I took it out to the range and it shot fine. Now at home, I've been trying to get some dry-fire practice in using snap caps. The trouble I am having is that the heavy DA trigger...

Hi..totally new here...and to guns! I have a Walther Modified PPK with the following writing: Waffenfebrik Walther (Thur..or Thud...dang eyes), Zella-Mehlis, Walther's Patent Cal 7.65 m/m inscription on the gun...and the holster and bullets. How/where in the world would I start if I wanted...