I just bought a 454 Casull and will be shooting a decent amount of regular 45 Colt loads for practice. I'd like to save the brass up until I have a few hundred and then start reloading. I want to make sure that I buy ammo that uses good brass so I can reload it. Do most of the companies (magtech, ultramax, cabelas bulk etc.) use decent brass or would you stick to a major brand (remington, winchester, hornady etc..). Also, do the cowboy loads use the same brass as the heavy +P loads?