What is the max pressure of the cartridge where the muzzle energy is 201ft•lbf (273 j)?
CREATE TABLE "38_comparisons" (
  "cartridge" text,
  "bullet_weight" text,
  "muzzle_velocity" text,
  "muzzle_energy" text,
  "max_pressure" text
);
SELECT "max_pressure" FROM "38_comparisons" WHERE "muzzle_energy"='201ft•lbf (273 J)';