CREATE TABLE table_173103_1 (max_pressure VARCHAR, muzzle_energy VARCHAR)

What is the max pressure of the cartridge where the muzzle energy is 201ft lbf (273 j)?
SELECT max_pressure FROM table_173103_1 WHERE muzzle_energy = "201ft•lbf (273 J)"
SELECT "max_pressure" FROM "table_173103_1" WHERE "201ft•lbf (273 J)" = "muzzle_energy"