$465 from walmart, Savage "Tactical" .308win, model 110FP if I recall correctly (or 10FP or 111FP, something along those lines) GREAT shooters.

Or for approx $800 you can get a Remington 700PSS (police sharp shooter or sniper system or something along those lines), also a great shooter.

Either of these rifles are as close to the Remington 40X that any varminter would really need (target shooters MIGHT need a 40X, but they're not shooting factory rifles anyway), and they cost less than half-a little over half that of a 40X custom.