Looks like Uncle posted as I was typing a similar response. For Scopes under $400, I like Burris FFII's, Nikon Monarchs, Leupold Vari-x and VX II's and III's, and have been satisfied with a new vortex viper I recently got. I wouldn't be afraid to buy a used Leupold or Burris. For a sporter weight .223, you might even be able to get into a Zeiss Conquest 3-9x40 for $400ish.
Last edited by okgobbler; 11-10-2010 at 07:31 AM.