Originally Posted By: FlyChamps
The link on the Birmingham Proof House website to this research report doesn't work but I found it on a British website "Pigeonshooter" absent the artwork. The wildly varying pressures in these tests tells me that sometimes the gun would be unhurt, sometimes bulge a barrel and sometimes suffer catastrophic failure. The odds look poor enough that I'll do all I can to prevent a 20 gauge shell getting into a 12 gauge gun or a 28 gauge shell getting into a 20 gauge gun.

http://pigeonshooterhomepage.webs.com/safteyandthelaw.htm


Shhhhhh, don't tell anyone of this study. In the US today we risk having the federal government through OSHA mandate an outright ban of 20ga shells to protect against an accident from occuring.