adywan said:
…yet was able to expertly shoot out the door controls from the other side of the hangar bay with one shot?

I just realised something when you mentioned the above which at least for this scene, explains somewhat why Storm Troopers are such bad shots. As you say, Luke one shots the door controls as well as taking out 2 or 3 Storm Troopers all the while they can’t hit the side of a barn. You’ll notice a difference though in the way each are firing their weapons - Luke actually aims his gun by bringing it up in front of his face. I wouldn’t say he is using the scope but he could very well be said to be iron / barrel sighting it to an extent which would account for much greater accuracy whereas all the Storm Troopers in this scene are firing from the hip and it’s in a surprised and panicked state as they are caught off guard and attacked, quickly loosing multiple fellow troopers.

Obviously the combat scenario and mental state of these particular Storm Troopers doesn’t extend to others throughout the movies but the hip firing does as it’s not very often at all that you see any of them taking a proper aim.

Anyway, just a random thought I had while reading your post 😉

.Val