What are your opinions as to the safest personal/home protection ammunition available for use in the .40 S&W??? By safe I mean, while shooting close range at a given target, the bullet has the power to stop the target, but not enought power to continue to travel (i.e. into other rooms) in the case of a hit. In the case of a miss, what type of cartridge will lack penetration through drywall/plaster? Is that where the very light (115 grain) bullets come into play? I have had trouble finding definitive info about the balistics/ wound patterns of these cartridges. I know what to use to devistate a target, but sometimes delicate precautions are the only option.