Potassium perchlorate bursting charge #1

Composition

30  
Charcoal (Hemp or Paulownia)
2  
SGRS

Description

Shimizu lists this composition as ‘burst charge No. 5’. This compositions sensitivity is quite low, although higher than that of black powder. The explosive force of this composition is lower than that of the ‘Potassium perchlorate bursting charge #1’. This burst charge is often used in shells of middle and large diameter (6...10 inch).

Source: 
Shimizu[1]. Page 210