I would try probing with a piece of wire
The part that sizes the neck should be a straight cylinder and you could feel if it changed diameter or ended.
Complete thread:
- Odd reloading die question - 
Hoot, 
2012-02-11, 11:20 ![Open whole thread [*]](themes/default/images/complete_thread.png)  - Trade it for a 30-06... Just sayin... - 
Rob Leahy, 
2012-02-11, 13:43
- Borrrrr-innnng! - Hoot, 2012-02-12, 10:39
 
- I would try probing with a piece of wire - 
bj, 
2012-02-13, 11:07
- Thanks bj! - Hoot, 2012-02-13, 14:14
 
 
- Trade it for a 30-06... Just sayin... - 
Rob Leahy, 
2012-02-11, 13:43
