The XCR, once broken in, will eat pretty much any ammo out there. I suggest Full Metal Jacket (FMJ) in either 55 or 62 grain. You will only need softpoint for hunting or self defense. :2cents: As far as accessories pretty much any AR goodie of choice will work on the XCR. While you are waiting for your rifle you can read old posts to help with your "wish list." Save the brass you shoot as later on you may choose to reload your own to save money (i.e. the more you save the more $$$ you have for goodies and ammo ;D). Welcome to the forum Bigpops. Suggest you send your XCR to Bill Springfield for his EXCELLENT trigger job. Read the post on triggers for his address and phone number, it will be the best $49.00 you ever spent. :2cents: :toast: