Not definitive as it is not off of a bench, but the top of a toolbox. My shop range is just 27 yards with a 9 power scope. Later I'll do 50yd with much better optics. Once again all shots at the same reg pressure of 148 bar. Same hammer spring setting. The velocities changed based on projectile weight alone. No changes to scope settings, one magazine, 7 shots each. This was to observe velocities and weed out what clearly would not work.
