I tried some new hornady brass as well as my other win and remember brass and none of them showed any signs of over preasure. However I did find my best groups with h4350 at 40.5 grains. 3196 avg fps. 87 vmax 210m primer. I was shooting them at Ridgway Pa VBR. On July 2nd. Out to 1k. The wind played he'll with me. I'm trying to work up a 105 amax load now I'm seeing just over 3k fps using 47 grains of retumbo set .020 back off the lands. Accuracy is good at 100. Rifle is a long range precision varminter all stock. Warne 20 moa base and Warne rings, burris black diamond 6x24 56 glass.