Left and right side levers for Reilly..one from early 1870's...top from 1886: In one of the discussions someone mentioned that left-hand side levers were actually better for right hander shooters ergonomically but...the right-hand side levers were better for loaders... It was speculated that if one had a left-hand side lever...somehow you were "plebeian" or something or other. Didn't quite understand it. (Top gun is mine - really like it).
Don't think it will make much difference to your shooting if you key the lever from thumb over top of wrist...or take hand off wrist to key it. - you're still loading with your off hand.)(maybe a "loader" handed the gun by the shooter would take it in left hand, key the lever with thumb over wrist, then load with right hand?