I've never owned a wood stocked rifle that wouldn't do that to at least some extent. Get it perfectly zeroed and 3-4 months later you shoot it and it still shoots good 1" or so groups. They just strike the target in a slightly different spot. Most of the time it would not be enough to cause a miss at close to moderate ranges, but sometimes it could be 2-3" from where it was last zeroed.
Free floating and glass bedding help to reduce the effect, but you will never get some wood stocks to completely stop this. If you live in an area where the climate is fairly stable it is less of a problem. But in other places where temperature, humidity, and altitude can vary a lot, or if you travel to other parts of the country wood will do this. I stopped using wood on my go-to rifles over 30 years ago.