The wife and I want to get a S&W 22A for the range to save some ammo money and get a little better with accuracy. Since the farthest we'll be shooting is about 50', should we go with the 7" barrel or just the 5.5"? Our normal range guns are a 9mm Sigma with a 4" and a 1930 Model 1905 with a 5". Not really a competitive shooting situation but I thought you guys would have the best input.