I try , yet not always successful.......:o)
There are hunters here that will shoot their deer, put the rifle behind the seat of the truck with the empty brass still in the chamber and then next season pull out the rifle , use a mallet too open the bolt and chamber a fresh round and go get their deer for that season and put the rifle back in same condition........it’s no less than a tire iron too them . A simple tool that does a simple job ..........:o)
I’ve known a couple of those one-round-per-year deer hunters. Sighting in is just for new rifles and scopes, one time.