I cant' seem to hit my deer with it! At first I tried adjusting pressure to hit deer as light as possible, they out ran the dart. Then I've learned to up the pressure and aim low, but now have problem over shooting them. I'm thinking of only shooting a min pressure of 4 or 5 and resighting my scope. What works for most of you guy's that use the x-cal?? I'm wasting a lot of darts and educating my deer. Also what's the most pressure that you would feel safe hitting a deer at 15yds?