So i'm working with a 7WSM EW Model 70. Not exactly a long range gun but it will have to work for now. I should also point out that i'm fairly new to hand loading. My question relates to velocity. In all of my range sessions i've noticed velocity creep around the 3rd round. For a given load, the velocity will really climb. I'll start with the cold barrel around 3080 and end up at 3160 into the 3rd and 4th rounds. Is this common? Seems to be true for factory loads also. I'm thinking it's just the light barrel contour maybe as the 4th and 5th shot start to wander and I have to let the barrel cool.