I have a found a glitch with Mounted Combat where, during my travels, I was holding a greatsword (Daedric Greatsword to be exact), I sprinted on my horse with my weapon in the readied stance to attack, (holding the right trigger) and then attacked a giant. Not only did i just damage the giant, I launched him about 50 ft into the air, and he probably flew about 200m in total distance.

I've tried this again on a different Giant, but no other creatures, and it seems to happen when I leave the right bumber go just as before I pass the Giant.

Even though it may not be a game breaking glitch, it's still a glitch, and could potentially mess something up.

This will probably clear up after leaving the cell and coming back.