Here we decribe how to zero in a Hawke Red dot sight fitted to a Reximex Mito S. The technique is the same for all air pistols and rifles using a red dot sight.
Fantastic pistol and red dot. We have done a few videos with this .22 pistol. This is a 50ft exercise, bear in mind a normal pistol target range is 30ft. @@Jakelol1980
With a UK spec you would struggle hoping for 75ft. We had a Snowpeak for a while that was good up to 30ft. At 50ft it struggled, whether ours was faulty or not I do not know. However we took it back. It worked well with this sight. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-e6Z1yfGaE8g.html. The sight will work well with your plans. @@Jakelol1980