What is Source, when Cartridge is .375 remington ultra magnum?
CREATE TABLE table_name_67 (
    source VARCHAR,
    cartridge VARCHAR
)
SELECT source FROM table_name_67 WHERE cartridge = ".375 remington ultra magnum"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is Source, when Cartridge is .375 remington ultra magnum? ### Input: CREATE TABLE table_name_67 (
    source VARCHAR,
    cartridge VARCHAR
) ### Response: SELECT source FROM table_name_67 WHERE cartridge = ".375 remington ultra magnum"