If a carbine:
1. Get a noise suppressor if possible via taxstamp.
2. Use a bullet that will only penetrate 10-15 inches in ballistic gel which is no more than a handgun hollow point bullet will. The deformed bullet will not likely make it very far if it even exits the torso. Example Hornady TAP
Just for real perspective, OO buck penetrates way more than 15 inches of ballistic gel.
1. Get a noise suppressor if possible via taxstamp.
2. Use a bullet that will only penetrate 10-15 inches in ballistic gel which is no more than a handgun hollow point bullet will. The deformed bullet will not likely make it very far if it even exits the torso. Example Hornady TAP
Just for real perspective, OO buck penetrates way more than 15 inches of ballistic gel.