April 2, 20233 yr #2 HI, IT IS A GERMAN SHELL CASING. WHAT IS THE LENGTH OF THE CASING AND WHAT IS THE DIAMETER OF THE HOLE? PLEASE. C/13nA DENOTES A PERCUSSION PRIMER IGNITING Q.F. (quick fire) CHARGE. BEST, T BIRD AN ADDENDUM TO PREVIOUS POST. Q.F DOES REFER TO QUICK FIRE IN THE SENSE THAT THE SHELL, POWDER AND PROJECTILE WERE ONE UNIT. THIS CAME ABOUT IN 1906. PRIOR TO THAT POWDER WAS SUPPLIED IN SILK BAGS.
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