| AkMike |
| (.416 member) |
| 07/03/08 06:20 AM |
Re: numbers
|
It's the bore or land size. Kind of like the British way of calling a 450 anything up to 470ish.
|
|
|||||||
|
It's the bore or land size. Kind of like the British way of calling a 450 anything up to 470ish. |