Thank you all for the replies and information.
Drew thank you very much for taking the time to measure your sterlingworth.
I am new to measuring barrels and I am not Shure that I am measuring in the right areas for the forcing cones and chambers.
I have included a drawing of the areas that I am measuring and would appreciate some advice.
Thanks again
Gary




[url=[URL=http://s966.photobucket.com/user/crash11049/media/Fox%20Philadelphia%20sterlingworth/barrels_zps4df8dfc4.png.html][/url]][/url]