Hi @
Beetroot
Yes stages are at know distances. No range finder will be required.
I have been able to complete every stage so far with my sako and a single 5 shot mag except for the "Dive, dive, dive" stage shown on the video. If you have a bolt action that feeds well through the action you'll be fine (except for the "dive, dive, dive" stage...). If i had to recommend a bolt action magazine then i would say 2x5shot mags or a 10shot mag would be absolutely fine. I am currently trying to source a 10 shot mag for my sako but as the videos show i am not the fastest shooter either.
Overall it is my firm believe that the stages have been set such that a good shooter with a bolt action will beat an average shooter with an e-cat semi.