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_74706 ( "Name" text, "Case type" text, "Bullet diameter" text, "Neck diameter" text, "Base diameter" text, "Rim diameter" text, "Case length" text, "Cartridge length" text )

### Question ###
Which Case type has a Cartridge length of 64.77 (2.550)?

### Accurate SQL ###

SELECT "Case type" FROM table_74706 WHERE "Cartridge length" = '64.77 (2.550)'