Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_21489 ( "Cartridge" text, "Bullet weight" text, "Muzzle velocity" text, "Muzzle energy" text, "Max pressure" text )

### Question ###
How many pressure figures are given for the .380 acp cartridge?

### Accurate SQL ###

SELECT COUNT("Max pressure") FROM table_21489 WHERE "Cartridge" = '.380 ACP'