Dose anyone know what happens with velocity of a cartridge, when the ambient changes. What I am looking for. If the velocity change is lets say, 100 fps form 0 degs. to 125 degs. And at 62.5 degs. you have x velocity. Will you lose more velocity,(Total fps) going down to 0 degs. Or will you gain more velocity ( Total fps) going up to 100 degs. In other words what makes the bigger difference in the total velocity change. Which has the biggest difference Up or down???