CREATE TABLE table_7374 ("Cartridge" TEXT, "Bullet weight" TEXT, "Muzzle velocity" TEXT, "Muzzle energy" TEXT, "Source" TEXT)

What is Muzzle energy, when Cartridge is .375 remington ultra magnum?
SELECT "Muzzle energy" FROM table_7374 WHERE "Cartridge" = '.375 remington ultra magnum'
SELECT "Muzzle energy" FROM "table_7374" WHERE "Cartridge" = '.375 remington ultra magnum'