just learning,
I think you should try asking that question on the Reloading Forum or Bolt-Action Forum. The .308 will serve you well for what you want to hunt. I really don't believe the 168 gr.Matchking is the best choice though. Sierra does not recommend using MatchKings for hunting. The Hornady Interlock 150,165,180 gr. spire tip are my choice.......but there are many others. That choice depends on the rifle you eventually will purchase, and what it likes.
As far as what brand .308 rifle to buy...... you have a number of excellent choices today. You didn't say what price you were going to be spending, but the latest "hot" buys are the Tikka T3/Whitetails. Savage has an excellent reputation for out-of-the-box sub-MOA accuracy. Remington 700 is excellent as well as the Winchester and Ruger models. Generally, you must resort to trying them out for fit and feel...personal likes will steer you to the one. Good Luck and keep us informed of your search.
Jim