The second clip shows the butt plate end of the rifle in the upright position.
I cannot see the butt plate of the rifle......Could you post a screen shot?
Use the small white cloth for reference. In the pic below the cloth tapers to a distinct point at the 'bottom' (ie: the part of the cloth farthest away from the rifle).
The part of the cloth nearest the rifle tapers but doesn't quite come to a point, there is a flat spot.
In the screenshot below the same cloth can be seen. It tapers to a point farthest away from the rifle but the line of the upright rifle cuts off the taper we see in the pic above.
The vertical line of the left side of the butt plate end can be clearly discerned: