I own both a B14R and a BMR. With the same ammo, Lapua Center-X, they B14R will group a 50 yard 6x5 average of 0.318". My steel barrel BMR will do a 50 yard 6x5 average of 0.342". Both rifles have OEM triggers I've modified to run at 2lbs. Both shoot under 1 moa at 100 yards with Center-X.
The BMR is a hell of a bargain. Half the weight of my B14R.