I am going to go with the 72.0 grain load. I was very impressed by how much improvement I got from the RL15 powder. Here is a photo my the 72.0 gran group. The photo is a little crooked as I was trying t avoid a shadow. The group is actually directly above the dot with almost no windage error. The dot is 3/4". Thanks to all for the help. I am next going to try some RL15 loads for the 300 grain Barnes TSX.