[Copernicus]

I may be a teensy tiny bit off on one or two. But you get the idea.

I do, in fact, get the idea. You have not offered a specific source for any of your comments.

For your benefit I include a link to the Wikipedia article on calibers. It is on the Internet, so it must be true.

http://en.wikipedia.org/wiki/Caliber

Best regards,

[mamelukesabre]

I already gave you three sources not counting wikipedia. I’m pretty sure you will find that Hornady sells .312” dia bullets for use in the 303 british and other foreign 30 caliber rifles, while speer sells .311” dia bullets for the same rifles. I don’t have my hornady and speer books at home so I can’t give you page numbers and publish dates.