Quick tip, Joe...when measurin' stuff don't quite add the scientific flair you might expect, add a decimal point. A barrel measuring eleven inches is sorta pedestrian compared to one eleven POINT ZERO ZERO inches. See what I did there? Same exact barrel, but now it's more precisely scientific. If you want to get into uber science you might try metricalizin' the measurements. Pretty sure that's just calling them millimeters and bumpin' the numbers up, but you get the idea.
Glad to help...