It is HIGHLY beneficial to know what your short arm does when you are flat on your belly or more importantly ON YOUR SIDE. (think under a car). If a gun is fired PERFECTLY horizontal the bullet will begin to drop the instant it leaves the barrel (gravity works every time). Only our sights which incline the boolit UP make it possible to hit a target down range.
Here is the rub: Flip the gun 90% to the right. The boolit is still going to fall coming out of the tube but your sights are totally off. The general rule of thumb is to “aim” at the shoulder closest to your feet. So if you go flat and end up on your right side, aim at the “left shoulder” (the target’s right facing you) of the target. Sight picture and trigger control all work the same but you are clocking out the mechanical offset and ballistic drop. You can try this at any range standing up, it’s uncomfortable but you can do it if you are careful. It is knowledge worth having.