I was just wondering if any one has found any successfull shot/ choke patterns for ducks or geese with 870 exp.

Take the shells out, throw the gun at the ducks....lol.....mine liked winchester drylocks when I had one...

Stay with Winchester or if in a pinch, Federal. I like Supremes in 3" #3 for ducks and BB or BBB for Geese. Fast Steel #3 in 3" or even 2 3/4 over deeks work great and pattern great in an 870 Magnum. Oh ya, I only use Imp. Cyl with steel.