Had one couple of years ago---

usually shot right barrel first--never had a problem with doubling...or any other machanical problems..as Curl mentioned in his reply, for me, it did NOT fit well and kicked worse than any gun I have ever shot...that includes .577 nitro's, etc...

Think for the money, it is a great gun...actually have a sxs in 20 gauge shotgun that I love and use a lot..

Ripp