Got to the range today to do some load development with N320 and Campro 147's but for curiousity sake I loaded up a few Xmetal 147 GN coated rounds and tested them with Titegroup. I ran a 10 shot group with 3.0 grains and a 10 shot group with 3.2 grains loaded to 1.118 OAL. The 3.0 grain load gave me an avg of 912 fps, making the power factor 134, the 3.2 grain load averaged at 943 fps for a 138 pf. So 3.0 grains under a coated 147 is plenty hot enough, if you don't care about PF for IPSC or IDPA you may want to test starting as low as 2.7 grains.