In Pennsylvania we are not permitted to use auto-loading rifles for deer hunting. Someone told me that the ranch rifle could be converted to manual operation by removing the gas block halves and plugging the gas port (with a nail or round piece of metal?). Did anyone ever hear of this? Is this possible without damaging the rifle, and can the rifle be returned to auto loading? Will the bolt lock up upon firing, and will the charging lever manually load a second cartridge after the first is fired? I would appreciate any help from the members of the forum.