I'm trying to sight in my .22 rifle, but the only range available nearby is a 25 yard indoor range. I'm using a Walther 45mm red dot scope(no magnification), and I plan to use it to hunt squirrel, rabbit, crow, and other small game. I'm not certain, but I don't think that a .22 trajectory has peaked yet at 25 yards, so I think I should sight it a bit high, but I don't know how much. I anticipate my average shot will be 50 yards. So how do i sight it in for 50 yards using a 25 yard range?