Can any 'airgun pathologist' tell me if there is any difference between the internals of the .22/6mm/.177 versions of this gas revolver? Is there any difference between the 'SoftAir' and standard CO2 versions of it? In 'my country' the importation and sale of the plastic pellet shooting version is legal but the lead/steel shooting types are prohibited imports.....so,are there internally different Schofields or are all three the same gun? Concerned Plinker,Tunbridge Wells(or half a world away....)