Could you add instead of shooting range with not moving targets a shooting range with bots, the bots should have all kind of vests/helmets and be on different distances. That will show the true power of the weapon. Now on the shooting range its kinda hard to know anything from only shot targets from any weapon (from this i just kinda now about recoil and drop what both are not super important)

What you could also add to this shooting range is where the boots get shot. Its not super important but overall just add the Virtual Trening from Arma 3. I know that in Arma 3 Virtual Reality bots wear exact equipment what player did so you can go also for that if going for setup bots with all vest/helms fail.