You can shoot a PRS style match with just about anything, but the way they are set up, without a certain amount of tailoring, its going to be frustrating.

308 is gonna be tough due to recoil, but definitely doable. The real killer is going to be mag capacity. Most are set up as as 10rd timed stage, and reloading or single loading will be a huge source of frustration.

With that said, give it a shot...when you are done, you will walk away with a plan for next time.