Sorry for drifting OT, but traditional archery is a fabulous practice tool for improving your instinctive handgun shooting. I don't necessarily mean shooting without using gun sights - but learning how to quickly bring your weapon on target with the sights in the back of your mind and the P.O.I. on the target foremost in your thoughts.
When I was a little fella, one of my grandads observed that I am cross-eye dominant. I'm right-handed and left-eye dominant - but rather than force me to shoot left-handed, he started working with me using slingshots, archery, and shotgunning. I started out by squinting my left eye closed, but as the years went by, I began to shoot with both eyes open. I don't even think about it anymore. If my brain observes that my left eye is taking over, it signals to blink that left eye and the right eye takes over without me even knowing!
I can't have a gun range behind my house, but I do have a safe archery range with targets set up at various angles and distances. The local Barney Fife has tried to make me take down the targets and quit, but there are no ordnances against it...yet. Still, it's a great way to practice basic aiming skills when you can't go to a gun range.
xtm