Pattern it with your chosen home defense load if that's what you plan on using it for. Shoot it at 5, 10, and 15 yards at man sized targets with your HD load, it's important to know what the gun will do.
If this latest (2016) assault weapon (semi auto) ban passes... I will simply install hydraulically actuated rotating bolts, and jimmy slap triggers. They can't regulate what they don't understand.