The manual said 300yards against stationary targets, 200 yards against moving targets.
Stationary 300yds is realistically possible but 200 yards against movers is overly optimistic.
Old tank hulls spaced out at 75yds, 150yds, a mover on a railroad track at 150yds, and tank hulls at 200, and 300 yds were normal on rocket ranges.
The NCO supervising a team of 2 young soldiers would start them off at closer targets and then give them a challenging longer range tank hull if the team was shooting well. Its done the same way today with the M72.
The danger template for the 3.5 RL on old Canadian Army maps was 1000yds long. The maximum distance the rocket could possibly ever fly.
The m72 66mm rockets that replaced it have very similar flight properties.
Beats the German Panzerfaust 30 M all to hell, the designation referring to the range.
Grizz