I am looking at my first revolver. I am like the looks, reputation and characteristics of the Ruger GP100 and SW 686. The extra round on the 686 plus is something I am thinking about but I am looking for opinions on barrel length. It will not be a CCW. It will be used for home defense, target and camping trips. I will start shooting the .38 rounds but will also look to familiarize myself (and my wife) with shooting the .357 rounds. Does the 6" barrel give a significant range/accuracy difference?