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_17502 ( ".308 Winchester cartridge type" text, "100 m group (mm)" text, "100 m group ( MOA )" text, "300 m group (mm)" text, "300 m group ( MOA )" text )

### Question ###
What are all the 100 m group (mm) with a .308 winchester cartridge type of .300 winchester magnum cartridge type

### Accurate SQL ###

SELECT "100 m group (mm)" FROM table_17502 WHERE ".308 Winchester cartridge type" = '.300 Winchester Magnum cartridge type'