Shooting a 3030 rifle, or any other high powered rifle, inside a residence and expecting to NOT ENDANGER the public at large, outside the home is BOTH UNREALISTIC, AND IRRESPONSIBLE.
While EVERY EFFORT, should be exercised to protect ones family, it does not give anyone, the right to endanger other innocents OUTSIDE THE HOME, and to take that upon ones self should be considered CRIMINAL, and that person SHOULD BE PROSECUTED, unless circumstance were dire, and the burden of proof that a better alternative was not available, should be PLACED DIRECTLY ON THE HOME OWNER.
A shotgun with bird shot INSIDE the house is FAR MORE PRACTICAL, AND SAFE, AND EFFECTIVE, than turning rifle rounds lose, to go where they may. Even firing a pistol round, ESPECIALLY THE 9mm, are taking a chance on injury or death, to an outside innocent.
Drive by shootings into houses by gangs, and their results, should be more than enough evidence of these facts, for even the most feeble minded defenders of the home.
Bullets change direction almost 100% of the time, after passing thru a body, and when ones family is BEHIND the perp, they are not safe IF the round exits the perp, and are in fact, in more danger than the neighbor.