I will soon be getting my first handgun :-D and I think I have settled on the Ruger GP100 357magnum. I want something that is versatile, that I can use for deer hunting as well as something I can carry on hiking trips, etc. Do I need the 6" barrel, or will a 4" suffice for hunting? I figure the 4" would certainly be more comfortable to carry. I don't want to sacrifice accuracy, but I'm thinking that within its range, perhaps there isn't that much difference between the 4 and 6" anyway. Thanks!