I tested them earlier this year. Did both 135 and 153 grains. They shot fine with basically .1 grain variation in charge. They did not perform significantly better than Berger Hybrid 140 and ELDM 140 to justify more than double the cost.
I have em in 135. I have about 4k rounds through my beat up rifle and with this projectile I get consistent .5 moa groups. I like em, can't wait to get a new barrel and test em in that manner.