I have a 686 evo problem if I shoot top barrel first second barrel goes to a hair trigger. Also if using snap caps shoot top barrel first and can just pull trigger again for bottom other way round have to use barrel selctor to fire next barrel. Will a good clean solve this.
One time with symptoms like this, I found a grain of corn stuck in the sears… it can be all manner of things, but most common is something wrong with the sears.
I have exactly the same gun. My problem is from under to over is fine but over to under the under won't fire. Not so much a problem for me because I shoot half +half chokes all the time. I should drop it down to you. I'm over in East Devon.
I have had bad luck with Berettas terrible customer service I will never buy another one I’ve since bought 3 brownings never a problem just better made guns browning has better triggers i hated the safety on my 686 (new )
I provide the same level of customer service to all my customers, whatever the model of make of gun. All makes of gun have similar problems in my experience..