My wife shoots a .270 Winchester in the BAR. Love that gun. Anyway, it took about 12 shots to settle on a load. I started with IMR 4831 and loaded in 1/2 grain increments. On the first set of three I had a very respectable group. By the fourth set of three the group had shrunk down to a clover. This was at 100 yards. The load is at max and I can tell you that velocity is right where it should be and she has shot deer in warm October weather and elk in sub zero December weather and never run into any problems with the gun functioning.

Give it a try, you might like it.

By the way, here load is with a 130 grain bullet.