Nah - H&Hs with self-opening mechanisms are a true self openers.
Boss also made some true self openers. They're rare, though.
I like Boss's self-opening system the most. Purdeys are neat, but I don't see any real benefit to the Beesley action. Due to the requirements of the action/spring, I think it's tough to make it in smaller gauges. That's why a lot of the 20s, 28s. and .410s look so funky. I think the Beesley action is kind of complex, too.
I think Dickson RAs are self-openers along with Lancaster wrist breakers. I don't know much about those guns.
Don't know about the American guns.
And Thomas is right - self-openers always open by themselves (or with minimal assistance) -- fired or not.
OWD
Last edited by obsessed-with-doubles; 04/03/12 10:23 AM.