I've recently bought my first semi-auto (Remi 11-47) and have had varying advice on wether to lube the action or leave it dry. The idea of the gas valve piston running metal to metal dry seems alien to me but I would appreciate advice from the experienced. If lubing it what do you use; i tend to use Ballistol for everything on my O/U. The gun will be used in a clean environment - not dirty/dusty.
Thanks