If my family is in danger and I kill an intruder or intruders I'm damn sure not worried about what gun I pick up to do it. A question to answer would be "Is the gun you shot the BG or guys with in your possession legally and if it's an EBR is it 922r compliant?" Is the use of deadly force justified? If you comply use what you have to use. Family first.. An anti will find fault in whatever you shoot BG's with. Just my thoughts and no means legal advice.
Here is a short guide for use of deadly force. Check your state laws.
1.You may use deadly force only if you have a reasonable belief of an imminent danger of death or serious bodily injury
2.If you do not have all of these elements, do not even show your weapon—you will likely be facing a criminal charge
3.You get the protection of this law only if you are not engaged in unlawful activity and you’re in a place where you have a right to be
4.You CANNOT use deadly force to protect property because there is no danger of death or serious bodily injury: the threat has to be against a person, not a thing
5.The threat has to be imminent: it has to be about to happen now
6.You do not have a duty to retreat before using deadly force if you hold a reasonable belief of an imminent danger of death or serious bodily injury, and you do not have to give any kind of warning, verbal or otherwise
7.The no duty to retreat concept applies in and around your home, as well as out in public
Here is a short guide for use of deadly force. Check your state laws.
1.You may use deadly force only if you have a reasonable belief of an imminent danger of death or serious bodily injury
2.If you do not have all of these elements, do not even show your weapon—you will likely be facing a criminal charge
3.You get the protection of this law only if you are not engaged in unlawful activity and you’re in a place where you have a right to be
4.You CANNOT use deadly force to protect property because there is no danger of death or serious bodily injury: the threat has to be against a person, not a thing
5.The threat has to be imminent: it has to be about to happen now
6.You do not have a duty to retreat before using deadly force if you hold a reasonable belief of an imminent danger of death or serious bodily injury, and you do not have to give any kind of warning, verbal or otherwise
7.The no duty to retreat concept applies in and around your home, as well as out in public