The service grade will be a good hunting/plinking rifle and will probably surprise you with its accuracy. If you plan on matches, then maybe go to the special grade. However, service grades are good accurate rifles and will do everything you are looking for quite well.
If ye love wealth better than liberty, the tranquility of servitude better than the animating contest of freedom, go home from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains set lightly upon you, and may posterity forget that ye were our countrymen. ― Samuel Adams