I would highly recommend a oelher model 35p. I stated out trying to save money on a cheaper model. worked some of the time, but was frustrating in bright sun to find the sweet spot it would read. seemed like I used more shoots trying to get the chron to read than i did actually yousing it . got to where i left it at home when I went to the range. bought a Oehler 35p after talking to another rifle club member at the range that had one. to say I am impressed with how well it works is an understatement. you set it up and shoot down the center and it just works. I don't go to the range with out it now.
