Just saw this in Double Gun Classics E-zine

UK recomended minimum wall thickness measured 18" from the barrel breech:
2 1/2" 12g- .028
2 3/4" 12g- .032
Re-proof minimum- .024

From the Griffin & Howe site:
http://www.griffinhowe.com/abbreviations.cfm
"A rule of thumb states that the minimum barrel wall thickness should be .020" in a 12 gauge gun."
No indication if this is 9" or 18" from the breech.




Last edited by revdocdrew; 07/13/07 03:48 PM.
https://sites.google.com/a/damascusknowledge.com/www/home