| 400NitroExpress |
| (.400 member) |
| 04/12/09 06:26 AM |
Re: What is the official actual bore and groove dia. of .500
|
Dan:
Here is CIP.
http://www.intermin.fi/intermin/images.nsf/files/B0E765375DA00143C2256FBE0032DD2A/$file/TABIIcal.pdf
Looks like .510" bullet, .500" bore, .512" groove.