Although it would be interesting to see the equipment list(mostly what's not on it anymore). I'd bet 80-90% of the rifles there were capable of winning regardless of what they were put together with, it won't save anyone who misses the wind/conditions by 1-3moa or pulls bad shots.
Its all coming down to marksmanship/shooter, something that kinda got forgotten about by many(and me) in the equipment race and a big reason why I switched to TR recently, its all marksmanship and I need to improve that a lot more than anything on my rifle or reloading.