Hi , I am thinking about getting into reloading. I have already have a couple of the necessary tools that are needed, press (only a single stage but it will be good to earn on ) Dies , etc. I am going to wait to purchase the other things until I have done a ton of research , and possible a class so I dont waste money on something I dont need. My main focus will be the .223 caliber ,so in the mean time while I am doing some research for a while I would like to know which once fired brass I should be accumulating and which brass is not that great for reloading. I mainly shoot Remington UMC green box from Walmart , it is cheap to shoot but are the casings good for reloading or should I be targeting some better ammo with better brass? If anybody knows a good reloading class to take please let me know , I also noticed a book someone had recommended in another thread I will probably be checking out. Thanks for any info.