CREATE TABLE table_20469 ("Cartridge" TEXT, "Bullet weight" TEXT, "Muzzle velocity" TEXT, "Muzzle energy" TEXT, "Source" TEXT)

What is the weight of the bullet used in a Weatherby?
SELECT "Bullet weight" FROM table_20469 WHERE "Source" = 'Weatherby'
SELECT "Bullet weight" FROM "table_20469" WHERE "Source" = 'Weatherby'