Table:
text: .303 British
Headstamps and colour-coding
Headstamps and colour-coding
Headstamp_ID Primer_Annulus_Color Bullet_Tip_Color Other_Features Functional_Type
VII or VIIZ Purple None None Light Ball
VIIIZ Purple None None Heavy Ball
G1, G2, G3, G7 or G8 Red None None Tracer
G4, G4Z, G6 or G6Z Red White None Tracer
G5 or G5Z Red Gray None Tracer
W1 or W1Z Green None None AP
B4 or B4Z Blue None Step in bullet jacket Incendiary
B6 or B6Z Blue None None Incendiary
B7 or B7Z Blue Blue None Incendiary
O.1 Black Black None Observing
PG1 or PG1Z Red None Blue band on case base Practice-tracer
H1Z None None Front half of case blackened Grenade-Launching

Question: Considering that .303 British for the light sphere functional type were the other features?

Question: How many primer ring colors were there for .303 British when the tip color was white?

Question: How many bullet tip colors had other features of a blue band on the case base under .303 British?