IMO-Yes your POI will change. But as I said earier we are looking for relative POI for a hunting situation. If it changes an inch or two and you are shooting 2-3 inch groups at 100 yards then it will be difficult to tell any POI shift.

I have rifles I shoot for fun, and then my serious hunting rifles. I truly treat them differently. I bought a Knight LRH that will drive tacks. But it took a lot of work, and range time to get it the way I want it. This is not a "Fun" rifle to shoot. It is actually a job, but that is my fault. I completely clean it between each shot, as I am only concerned about a fully cleaned first shot.

the barrel is bedded solidly to the stock, with full contact. I do not take the barreled action out of the stock. I actually put a cloth over the bolt to enclose powder residue(yes I am very anal about it).

This rifle will reliably kill a deer every time out to 250 yards, as long as I know the distance. I combined the Leupold B&C reticle scope, and with the range time I have put in I know exactly where my bullet is going to strike as long as I know the distance.

As I said this is not my fun gun, it is my serious hunting rifle. When I hunt and shoot for fun I use my Lyman flinter. But I limit my shots to about 125 yards with this rifle. And my main concern is minute of deer accuracy. So a little shift of my POI is no big deal.

I hope you nor no one else on this sight gets the sickness the way I have it. But I will admit it is a hoot to outshoot guys at the bench with an MZ when they are shooting their 30-06's. Tom.