My first shotgun was a mossberg 12ga. pump that aside from a very unlucky raccoon who was in the wrong place at the wrong time and a couple of squirrels I couldn't hit the broad side of a barn with it.
Now the first shotgun I shot a pheasant with was my next gun,a New England Firearms 20ga. single shot witch only wounded my first pheasant and after a mile or so chase through the field,wouldn't ya know the killing blow came frome the butt end of the gun.