No problem my friend, and you've shown that it can be done, of course!
I don't know enough about the aircraft or its armament, but I've seen small bombs like that which are sometimes practice bombs, or smoke bombs, although the latter often have a 'blunt' nose. And of course, in the early war period, small 25 Pound bombs, or around that size, were still used by such aircraft; the Lysander, for example, carried a number on each rack on the wheel spats.