I am in the process of building a AR15 and want to get into the reloading game in order to maximize my accuracy. I will also be reloading for my various hunting rifles and pistols from time to time. First, let me say, I am just beginning, so I don't really know what I need. I have been looking around and I think I have narrowed my reloading press choices down to RCBS or Hornandy based the fact that they seem to be the two most common brands. Is there any other brand that I should consider? Is there a reason that I should go with either the RCBS or Hornady over the other? In choosing my press, I don't want to make some mistake like "RCBS presses will only load rifle cartridges whereas the Hornady can be used to load rifle and pistol cartridges". Or, "the RCBS presses will except any brand of turrets and dies while the Hornady will only except Hornady branded items". Second, I am trying to decide between a single stage and a progressive stage reloading press. Is there any advantage to the progressive stage press other than speed? If it helps, I will only probably reloading a hundred to two hundred rounds at a time maybe once a month or so. Based on the above statements, does anyone have a recommendation on a specific reloader that will fit my needs? The three presses that I had my eye on before posting in this forum were RCBS Rock Chucker Supreme, Hornady Lock-N-Load Classic, and Hornady Lock-N-Load Auto Progressive. Thanks for any comments back.