I learned to shoot rifle left handed, but years later when I got into pistol shooting, dominant eye issues prompted me to transition to shooting right handed. At least for sidearms. Took it upon myself to retrain decades of muscle memory to do the same with rifle recently, a process sped up a lot practicing with air rifles. Feels natural now, but sure did not for the longest time. i shoot GLOCKs right handed with left eye dominance with no issues after some small adjustment. with a red dot and more practice i can shoot a rifle right handed with both eyes open, iron sights no way in hell.
iron sights no way in hell. I am an old iron sights guy, having been trained that way from the start. Still learning to working with scopes, almost do better with irons some times.