| DarylS |
| (.700 member) |
| 25/07/12 10:56 AM |
|
Re: 1903 groove diameter
|
Welcome - your idea of what happens when firing is correct.
Necking up then down to create a new shoulder is the best way to handle a bit of excess headspace.
What do the cases measure around the web - about 3/8" up from the rim?