You can't just build it, or buy it, with the plan of beating on everyone in sight. There is no small group machine that you can crank the handle on and start winning. You still need to read the wind like everyone else, you need to be able to load perfect ammo, you still need to handle the gun in a repeatable fashion, you have to keep it in tune for the whole weekend. Plus dozens of other small things that would take forever to type.
Agreed 100%, which is why I added the "tweaking" part in my analogy. My point is, I personally consider these uber-precise BR rifles more like "bug-hole generating platforms" more than "rifles"