Keywords: QF 4 inch Mk IV gun recoiling on HMAS Wilcannia AWM 304887.jpeg AWM caption PRACTICE FIRING WITH THE 4 INCH GUN ABOARD THE AUXILIARY ANTI SUBMARINE VESSEL HMAS WILCANNIA EX WYRALLAH THE GUN HAS JUST BEEN FIRED AND IS AT FULL RECOIL NOTE THE NET TO CATCH THE USED CARTRIDGE CASES EJECTED FROM THE BREECH AND THE SHELLS IN THE READY USE AMMUNITION RACKS BEHIND THE GUN 304887 NAVAL HISTORICAL COLLECTION ~ 1943 not stated PD-AustraliaGov DEFAULTSORT Wilcannia QF 4 inch Mk IV naval gun HMAS Wilcannia Black and white photographs |