Welcome! I have spent many years working at this craft and shoot now out to 1200 yrds.
Recently I took my brother to the range. He shoots rarely and never at any distance. Of course he has the luck of the gods so the wind was calm. In Wyoming that is uncommon.
Within 30 mins I had him ringing steel consistently at 800 yrds. Of course this was my gear, my hand-loads, me spotting, ranging, perfect shooting mound, perfect weather, some coaching, and me calling out dialing and wind holding instructions.
I was amazed at how I was able to take what I had worked so hard for and put it in his hands with some reasonable success. There is a lesson there, open for interpretation……