Planning a squirrel rifle build --- .40 caliber barrel in either 3/4 or 13/16 flats. The length will be anywhere from 36 to 39 inches long. I am trying to find the actual weight of several barrels to determine a comfortable offhand rifle weight.....without getting a swamped barrel. Does anyone have access to a chart of some type that lists various barrel weights? Appreciate any info, thank you.