headstamp id primer annulus color bullet tip color                           other features      functional type
0               vii or viiz               purple             none                                     none           light ball
1                     viiiz               purple             none                                     none           heavy ball
2   g1 , g2 , g3 , g7 or g8                  red             none                                     none               tracer
3      g4 , g4z , g6 or g6z                  red            white                                     none               tracer
4                 g5 or g5z                  red             gray                                     none               tracer
5                 w1 or w1z                green             none                                     none                   ap
6                 b4 or b4z                 blue             none                    step in bullet jacket           incendiary
7                 b6 or b6z                 blue             none                                     none           incendiary
8                 b7 or b7z                 blue             blue                                     none           incendiary
9                        o1                black            black                                     none            observing
10              pg1 or pg1z                  red             none                   blue band on case base    practice - tracer
11                      h1z                 none             none             front half of case blackened  grenade - launching
12                       h2                 none             none                    entire case blackened  grenade - launching
13                       h4                 none             none  case blackened 3 / 4 inch from each end  grenade - launching

Table as JSON:
{"headstamp id":{"0":"vii or viiz","1":"viiiz","2":"g1 , g2 , g3 , g7 or g8","3":"g4 , g4z , g6 or g6z","4":"g5 or g5z","5":"w1 or w1z","6":"b4 or b4z","7":"b6 or b6z","8":"b7 or b7z","9":"o1","10":"pg1 or pg1z","11":"h1z","12":"h2","13":"h4"},"primer annulus color":{"0":"purple","1":"purple","2":"red","3":"red","4":"red","5":"green","6":"blue","7":"blue","8":"blue","9":"black","10":"red","11":"none","12":"none","13":"none"},"bullet tip color":{"0":"none","1":"none","2":"none","3":"white","4":"gray","5":"none","6":"none","7":"none","8":"blue","9":"black","10":"none","11":"none","12":"none","13":"none"},"other features":{"0":"none","1":"none","2":"none","3":"none","4":"none","5":"none","6":"step in bullet jacket","7":"none","8":"none","9":"none","10":"blue band on case base","11":"front half of case blackened","12":"entire case blackened","13":"case blackened 3 \/ 4 inch from each end"},"functional type":{"0":"light ball","1":"heavy ball","2":"tracer","3":"tracer","4":"tracer","5":"ap","6":"incendiary","7":"incendiary","8":"incendiary","9":"observing","10":"practice - tracer","11":"grenade - launching","12":"grenade - launching","13":"grenade - launching"}}