RE: what do you guys think of Rossi??
The screw is what ataches the barrel to the forarm,so if you put more or less pressure on the barrel it will change POI.It's kinda of like resting your gun on the forarm and then on the barrell.The more pressure you put on the barrell the more your POI will change.
The scope has not moved but if you don't have the exact same placement of the barrell you will be off.