I think a correct answer is largely going to reflect on what kind of "match" or competition shooting you will be doing. The problem isn't finding a rifle that will harvest deer or a rifle that will shoot at competitions, What you will have to do is find a compromise somewhere in the middle. I see that you stated most of your competition shooting will be inside 200 yards? If that is correct then you will not have a hard time at all finding a rifle that can do both. With this being said, I assume that you will want to shoot pretty accurate groups in your competitions, is this correct? Accuracy has alot more to do with practice and the set up of the rifle...ie..scope, trigger work, stock bedding ect. than it does with the actual rifle round itself. Also, it doesn't hurt to reload your own ammo if you are competition shooting, you will notice far better accuracy from your own reloads than nearly all factory ammo. When you are hunting, accuracy doesn't always have to come down to minute of angle precision. Thats why alot of guys on here will recomend getting 2 rifles. One for competition, which could be heavily modified with stock alterations and trigger works ect.and the other for just plain old hunting. Preferably you will want your hunting rifle to be easy to carry, so a "typical" match rifle would not be suitable for hunting. I use the term "typical" loosely because in your application for competition shooting, a 20 pound rifle might not be neccesary for you. You will see larger modifications done to rifles that shoot 600 meters and more. Like I said in your situation, these modifications might not be neccesary. Another thing, If you will be competing at 200 yards in these matches, then the shots you take at live game should not be much farther than that. This is because that is the distance you are used to practicing at. With all this being said there are alot of "GREAT" rounds that will harvest whitetail inside 200 yards and providing that you start reloading your own ammo these same rounds have been proven to give MOA accuray also. Here are a couple good rounds that would fit your quarry. 25-06, 7mm mag, 280, 308, 30-06...ect In my honest opinion I would choose the 25-06 or the simple .308 for competion and hunting, both rounds have track records in match competions waaaaaaaaaay beyond 200 yards and both have harvested their fair share of whitetails also. Regardless of what your choice is, with alot of practice and some mild modifications along with doing your own reloading, you should be bringing home trophies for the wall and venison for the table....good luck hunting and shooting bud....hope this helps.