ribka if you can find a place that has some jackrabbits they are great practice for a thermal. That helped me quite a bit. After shooting them we would hit them with a light and a rangefinder to determine yardage for practice. After a while you were able to judge distance a bit better also. It is also fun watching the bits and pieces fly off with it too. I've been shooting a Pulsar trail xp38 for almost 4 years now, they are a hoot!
