Hunting in Hawaii and NZ I dropped my rifle and fell on it several times. I never had to re-zero my scopes on multiple rifles even when I once dented the tube. I cannot imagine it going off that much without major damage to something, scope, bent barrel or bent mounts, etc. and that would require more than just a re-zero.
The only time I had to re-zero my rifle was when I traveled. Which got me thinking how can it be when it's in a soft case, inside a SKB hard case? Well I found the answer out.... TSA. I took pics of my turrets and put clear nail polish on my turret cap seals. Sure enough when I got to my destination I opened it and yep, broken seal on the caps and the turrets been moved. Now I see why people tape scope covers on or have TSA inspect in front of them before locking with a NON-TSA lock.
To OP if your POI changed that much I suspect something is broken, bent, loose or needs changing. I would also verify at longer ranges after your initial re-zero to see if it's trued.
The only time I had to re-zero my rifle was when I traveled. Which got me thinking how can it be when it's in a soft case, inside a SKB hard case? Well I found the answer out.... TSA. I took pics of my turrets and put clear nail polish on my turret cap seals. Sure enough when I got to my destination I opened it and yep, broken seal on the caps and the turrets been moved. Now I see why people tape scope covers on or have TSA inspect in front of them before locking with a NON-TSA lock.
To OP if your POI changed that much I suspect something is broken, bent, loose or needs changing. I would also verify at longer ranges after your initial re-zero to see if it's trued.