Mine only came with the Ulti Full turkey choke. I'm probably going to order another one but I'm not sure what kind yet.

Short story on my 835. I bought it 2 days before turkey season a long time ago. Everybody had one so had to. Shot it 2 times to pattern it. Cleaned it, Turkey season opened I shot it 3 more times over 3 days I had my 3 bird limit. I cleaned it and put that angry shoulder killing mule in the cabinet and have never touched it again. If you can routinely handle 3 1/2 inch loads in that thing I salute you.

unless it states not to , try it pattern it with that ulti full turkey, I have a turkey choke that puts buck on target at 50 yards from an 870 not every pellet but 3 within a couple inches of where I was aiming.

I don't have an 835

I have a Carson BSC buck shot choke in my 500 it is an extended full choke ported it works well

pattern a few of each round not every buck shot patterns the same even with the same choke

if your looking for a probably safe bet on a choke for buck shot the Carlson's BSC has probably been tested in the 835 configuration with buck also I know Carlson's does a lot of pattern testing

I shoot trap with the BSC also works like a full or little better with every type of shot I have tried. shot a 20 with it in a new barrel last week first round of trap with that gun I can say the misses were me and not the pattern it is a 20 inch barrel and that took a touch of getting used to.

the BSC had been in my 28 inch 500 and shot pheasants with it