Don’t shake it too hard, you might hurt yourself.
We generally zero shotguns for 25 yards at work and they are fine for 3 yards to 25 yards with both slugs and FFC 00. In the case of the OP he is doing a 50 yard zero due to the patterning of his particular gun.
If one didn’t have adjustable sights, trying different loads to find one that patterns/hits POA/POI is not unreasonable.