CREATE TABLE table_74703 ("Name" TEXT, "Case type" TEXT, "Bullet diameter" TEXT, "Neck diameter" TEXT, "Base diameter" TEXT, "Rim diameter" TEXT, "Case length" TEXT, "Cartridge length" TEXT)

Which Case length has a Rim diameter of 13.20 (.518)?
SELECT "Case length" FROM table_74703 WHERE "Rim diameter" = '13.20 (.518)'
SELECT "Case length" FROM "table_74703" WHERE "Rim diameter" = '13.20 (.518)'