Mossberg 835 ultramag need help

[Rimshot]

I have patterned my 835 Ulti-Mag with several different shot / shell combinations.
I get a really good pattern at 40 yards with the Federal - Mag Shock with Flight Control #5's - 3 1/2" with an Undertaker choke.

I got pretty good patterns with the Extra Full Turkey choke that came with my Mossy using both 3" Winchester Supreme #5's & 3 1/2" - #6's and also Federal Grand Slams in 3 1/2" - #6's.

It takes some shooting but you should be able to find a shell your gun likes pretty easily.