I'm a proud new owner of a .44 magnum. I've been wanting this S&W model of revolver for quite some time. I happened to come across a very clean used one, 6.5 inch barrel with the muzzle port. I looked it up on S&W website and its a model 629 PP. Was wondering what the "PP" stands for? I've fired pretty much all other types of smaller revolvers but never a .44 mag; I'm open to any feedback about recommended ammo/technique/distance etc. when I start out at the range. I also plan on eventually scoping it and using it for hunting. Any advice would be greatly appreciated! Thanks 