the groups are quite nice actually. since i have installed the bubble level on my infinity i found that the groups are better since i hold the rifle in a more consistent manner and no canting. try taking the rifle abit further something like 60,70 and 85 and see what it can group like. the bubble level becomes very important when making these shots as you are pushing the rifle near to its capabilities (within 1.75" groups). the heavier pellets would help a great deal at this.