Thanks to Impact Data Books and their new R.E.T.S. set. I went to the range to try this out and I was impressed by how well thought out and thorough this set is. I set my RETS board up at 52 yards and went back and gave it a try. I was very pleased with the results (see pics) although I admit that I need to spend a little more time ranging targets and a little less time pulling the trigger. Thanks Tony for another awesome product. You guys really do lead the way in Data Books. I urge you all to contact Tony at Impact Data Books and order this set. It's great for beginners who are learning range estimation and offers advanced shooters a great/easy way to practice this skill set. Steve. PS. Sorry for the crappy pics.