The reticle jump and ability to spot shots with the 6UM and 110+ grain bullets is about like a very hot loaded 6.5cm with 147gr or 156gr bullets. Definitely less jump than the 6.5prc. Yes the calculator puts it closer to a 6.5prc than 6.5cm, however recoil velocity plays a part in spotting impacts.
The feeling that most get is that 6UM recoils faster, but with less if a heavy “push”. The 6.5cm recoils “less”, but with a hot loaded heavy bullet- “pushes” more. My actual ability to soot my own shots with identical rifles is about same/same between the 6UM and heavy 6.5cm loads.
