Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_16439764_1 (gun VARCHAR, time_to_ft__m__at_55°__seconds_ VARCHAR)
### Question:
What gun has a time to feet ratio of 18.8 at 55 degrees?
### Answer:
SELECT gun FROM table_16439764_1 WHERE time_to_ft__m__at_55°__seconds_ = "18.8"