Does any one have any first hand knowledge of these rifles or know of any where that I can read articles or info about them besides their own companies websites? I am looking for an all around tack driving AR from 100m to 1000m.

http://www.lesbaer.com/ar223.html (the top one)


http://www.shooterstore.com/acb/showdetl.cfm?&DID=90&Product_ID=5286&CATID=493

http://www.colt.com/colt/html/a2g1_coltaccrifle.html

www.lesbaer.com/ar223.html
www.shooterstore.com/acb/showdetl.cfm?&DID=90&Product_ID=5286&CATID=493
www.colt.com/colt/html/a2g1_coltaccrifle.html

I've heard good things about the Les Baer and DPMS rifles you gave.  The Colt model I've heard can be a real hit and miss...
If you really want an accurate rifle for your money you need to have it built by a smith.  Someone like John from White Oak Precision or Derrick from Accuracy Speaks can give you exactly what you want for just a little more than a factory rifle.  This is the best route...
Another option for a semi-factory rifle would be a JP.  I have seen, handled, and fired one of these rifles and they are outstanding!  Very accurate!  You'll pay for it, depending on which model you get, but you get what you pay for, as with a good smith.
Hope I helped!
-Marksman
www.accuracyspeaks.com
alccrl.org/whiteoak/whiteoak.htm
www.jpar15.com

I now own a Les baer ultimate varminter and I do believe it to be the best off he shelf.Fit and finish are the best and it shoots as good as they say it will. Have had a Colt 6724 and it beats it hands down. Have a Bushmaster shorty and love it for what it is. Have had alot to do with Armalites.and Bushmaster varminters and like them both with a slight edge going to Armalite. If youknow of a place to have one built that's the best.They will put in the quality and may save you some cash to boot. For my money I'll stick with my Les Baer.