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_name_40 ( muzzle_energy VARCHAR, max_pressure VARCHAR )

### Question ###
What is the muzzle energy with 40,000 psi max pressure?

### Accurate SQL ###

SELECT muzzle_energy FROM table_name_40 WHERE max_pressure = "40,000 psi"