I agree that you need to be very careful, throwing things, including furniture is physical violence -- domestic abuse. It could very easily carry over to beating on you. There is a lot you need to know -- I don't want to scare you, but in an abusive relationship your husband is 75% more likely to kill you if you leave. Now that I have said that I want to say I would agree that one of you should leave. With him having guns in the house it might be safer for you to leave and leave him a note. You are not the one in the wrong, but who wants to be right, but dead.
You are in a very scary situation, have you checked out any domestic violence sites? Maybe you should call a domestic violence hotline, they are qualified to help you decide on the safest action to take.
