I have had good luck with our issue ammunition, which is 168 gr Federal GM Match. I have averaged 3/4" groups at 100 yards with my 10FP-LE2A. I believe that quality optics are the way to go with any precision rifle. I have a Kahles Helia S 3-12x56 now, and am saving up for a Leupold Illuminated 6-20x50 LR/T Mil-Dot.