I am not aware of any law which prevents you from doing this. As long as the weapon itself is legal. However, I would think it is generally not a good idea to discharge a weapon anywhere it could possibly harm some else or their property. I would also try to be courteous to your neighbours in the process. If you are really concerned, you should see a liscenced attorney in Maryland. He will be able to certify for you one way of the other. I am legally not allowed to provide legal advice in this forum, only advice of a genral and informational nature.
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