Does any civ have keep killing capabilites in feudal?

Title, trying to see how i can bust a keep in fuedal

Honestly, rams work. Multiple of course.
If you are talking about the Knights Templar feudal keep remember that it “only” has 4K hp in feudal (normal castle age got 5K) so you can bust it with rams.
I somehow your enemy isn’t Templar, got an army and a keep and you are still feudal we can agree that it may be the time to think about castle age yourself.