We all were told at some point in our training to "relax, squeeze the trigger slowly and let the gun kick freely".
This makes sense when you're just starting out, but if you want to shoot faster and maintain a high degree of accuracy, this basic advice will have to evolve. You will have to do things differently.
That's where shooting stance comes in.
It's one of the most important fundamentals of being a faster, more accurate shooter. Stance covers everything from the ground to your gun (literally).
A proper shooting stance has a lot of elements involved. For sake of simplicity I'll separate stance into two parts. The "Upper Triangle" and the "Torso and Legs".
This article is devoted to the "Upper Triangle", which is your hands, arms and shoulders.