I'm the proud owner of a new Ruger GP100 I just got today. I've wanted a full framed 357 for a while, and found a price on a new one I couldn't walk away from. I feel like a kid that just bought a muscle car. In order to get familiar with the gun, I was considering starting out shooting 38spl rounds. I've heard many people say to train with the same rounds you'll use it real life - but given the vast price difference in the ammo this gun can use, seems that there should be a place for 38 special ammo. Once I'm ready to work on my groups and other serious training, I think it's wise to use the full power loads. There's a huge variety of ammo out there, and I don't want to go broke buying a box of everything. What ammo (type or specific brand) is recommended for: 1) plinking, paper zombie targets and other novelty purposes 2) serious range use where I'm working on consistency/accuracy 3) home defense 4) hiking trail (cougars, black bear) Thanks for the feedback.