Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_99 (max_pressure VARCHAR, muzzle_energy VARCHAR)
### Question:
What is the max pressure for the 468ft•lbf (634 j) muzzle energy?
### Answer:
SELECT max_pressure FROM table_name_99 WHERE muzzle_energy = "468ft•lbf (634 j)"