Lynn...
I posed this question a couple other places and got a few responses as to bore/throat dimensions, etc. They are here if you'd like to see them.
http://singleactions.proboards.com/thread/18002/uberti-cattleman-feedback
http://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/11414781/Uberti_Cattlema...
Complete thread:
- Uberti Cattleman Feedback? - 
Sarge, 
2016-09-03, 15:14 
- Uberti Cattleman Feedback? - 
Creeker, 
2016-09-03, 21:09
- Yes Sir and at the very least, Boge needs to... - Sarge, 2016-09-03, 22:18
 - Lynn... - Sarge, 2016-09-06, 08:54
 
 - Uberti Cattleman Feedback? - 
Bob Hatfield, 
2016-09-05, 06:40
- Uberti Cattleman Feedback? - Sarge, 2016-09-05, 09:24
 
 
 - Uberti Cattleman Feedback? - 
Creeker, 
2016-09-03, 21:09