Don't know about 125's. IN my model 70 NM 150- 190 gr pills- 4831( imr or h) and Acurrate arms 3100 around 56 gr worked flawlessly out to 600 yards. apx 1/3 moa at 600 yards was typical 10 shot group size when the operator didn't mess up. Lots of newer powders out there now and I do not know how any of those would work.