Please be patient with me. I am very much a newbie. I just got a Ruger gp100 6" barrel, stainless. I have only been using snap caps in it for now, getting the feel for it, practicing holding it and aiming it, etc. This is my very first gun. Now I'm ready to take it to the range. I go look at ammunition and I have no clue what to buy for target shooting. I want to start with .38's in it and work my way up to a .357 magnum. There there are so many kinds. Do I want wad cutters, semi wad cutters, lead, jacketed, hollow points, what grain? I've seen ammunition that was less expensive but it had aluminum casings rather than brass. It just didn't sound right to me but I don't know anything about ammunition. I just want to shoot targets. I'm going to start shooting paper targets but I want to find an outdoor range and shoot metal targets. Please help me figure out what I should be using just to shoot at paper targets (for now) and learn to handle my gun. What should I be using for metal targets? What do I want to have for self defense when my gun is home and is my 'house gun'? I do believe for house gun self defense I want a .357 magnum hollow points. Please correct me if I'm wrong and give me some guidance so I can take my gun to the range and have some fun.