I am looking at getting another S&W revolver. I always like to find multiple roles for a gun when possible. Right now I am stuck between a 4 inch or 6 inch barrel. The revolver is a model 610 10mm revolver. Just not sure if I what barrel length I would be better off with for home defense. I know the 4 inch is better for a carry gun but the 6 inch is better for target and hunting use. I just don't know what would be the better choice.