English: Drill round or dummy cartridge for the .30 caliber Model 1906 United States Government. The cartridge uses a modified case bearing the headstamp F A 4 09 indicating manufacture at Frankford Arsenal in April 1909. The case has been tin-plated, indented with six longitudinal flutes, and perforated three times in alternating indentations. The hollow brass bullet retains a spring-loaded steel rod exposed in the primer pocket with 1/8-inch of possible forward movement when struck by the firing pin. This rod is intended for the Hollifield Target Practice Rod device -- a pointed rod within the barrel which would be propelled out of the barrel when struck by the steel rod in the dummy cartridge to prick a paper target held just in front of the rifle.