I am attempting to help a friend who inherited a 6.5x06 rifle. It has a Mauser action and uses a barrel from a Japanese rifle. On the internet I see listed 6.5-06AI and 6.5-06 A-Square. Are all these the same? Loaded cartridges which came with the rifle and are using 30-06, 270 and 25-06 brass formed to 6.5-06. The dies which came with the rifle are RCBS and the rifle barrel is marked 6.5-06. So, what do we have here? Just a plain old 6.5-06? If so can someone either provide load data or a link where we can get that data? He has 85 grain hollow point bullets and 140 grain soft points. We have 4350, 4831 and 3031 powders. Thanks, Dave