Yeah note elevated position at a flat shot 250m is max without indirect fire. At that range 1 of 3 shots will hit target expecially with heat or thermobaric ammo the weight and shape of the charge are not aerodynamic
The spec for rpg7v is effective engagement range of 330m 700 m max 900m is when self destruct fuse goes off. I am not an expert have put about 70 shots in real world personally it’s a pos but it cheap and you will run inyo in field and may have to use it.