What is the muzzle energy with 40,000 psi max pressure?
CREATE TABLE "38_comparisons" (
  "cartridge" text,
  "bullet_weight" text,
  "muzzle_velocity" text,
  "muzzle_energy" text,
  "max_pressure" text
);
SELECT "muzzle_energy" FROM "38_comparisons" WHERE "max_pressure"='40,000 psi';