I get sub MOA from my Black Hole barrels but they were acquired years ago. I've read from time to time on the internet their products are not what they once were.
As far as the above post on having to depend on luck to get better results is nonsense. MOA and under IS a tall order, but with the affordable offerings out there, it's certainly doable.
Ballistic advantage has an MOA guarantee with Match grade ammo... which is a requirement for best performance regardless... or carefully crafted hand loads, which is all I shoot.
I also have a White Oak Armament barrel that shoots sub MOA.
There are A LOT of entries in the MOA ALL DAY CHALLENGE posted on ARFCOM with LaRue barrels... I don't think all those shooters are "lucky" per se... they just have good gear, ammo, and shooting skills.
No reason why you can't be right there with the bunch. Remember the key: RIFLE, AMMO, SCOPE, SHOOTER. The end result will be limited by the weakest component.