I think you need to revist your parameters. As Mystic suggested a M14 type with lots of mods inc a new barrel is an option but, of course, you are at a .308 if you go that route. If you insist on sticking with 30-06 then I agree with Ian that a Garand is the only way to go. It really seems that you need to reconsider either action type or calibre. If you go the bolt gun route then you can get a precision rig in 30-06 with a bit of effort or, if you go bolt and .308 then you make life even easier for yourself new or used. If you want to stick with a semi then I suggest considering a .223 or, possibly, 6.8SPC which will allow the purchase of more precise equipment on either a Mini 14 ( doable new on the budget you give ) or AR ( will have to buy used ) platforms.