One more left hand / left eye dominant shooter.I suspect I would be doing everything left handed if it hadn't been for all that forced "Use your right hand" as a child back in the 70's
Handguns I can shoot equally well with either hand (not well, equally well). Though I have to think about it to force myself to use my right eye for right handed shooting. It's gotten easier since I see better out of my right eye nowadays. Lots of practice I suppose.
Rifles? Still left handed exclusively. Just got used to the shells flying across my face and the occasional hot surprise on my right arm.
It is odd to me to consider using a left handed rifle. I suppose a bolt action on left might be a nice thing to try.
More expensive and harder to find is the drawback.