I was trying out some various loads today at the range in anticipation of getting to chrono some stuff in a week or two (my local range doesn't let you use a chronograph.) Anyways, I worked up some rounds, using 75gr A-Max and powder charges ranging from 26 up to 27.2 grains of RL15. It was in the mid 60s today, so I was interested in where I'd start seeing pressure signs. Now, I know that the fastest loading isn't necessarily the most accurate loading, but before I go chrony some stuff I'd like to know where to start with my loads. All the way up to the 27.2 gr loads I didn't see any pressure signs to cause concern. The primers weren't getting flattened and the brass extracted with no issues. I expected that somewhere in the range of loads I had I'd see pressure signs and would have to step down the load a little bit. I was really surprised to see that none of them showed real signs. I'm using Lapua brass. Any ideas?