I'm a big time Mossberg fan. I started with a bolt action, and quickly ended up with a pump action 500. I've had all kinds of them ever since. I've never been interested in an 835 though, and as far as I know, they still make them. Is there something special about the early ones? Is it only the bore diameter as someone pointed out? I see they currently say they have a true 10 gauge .775" diameter. What are the old ones?
The recoil is the reason I never cared about them one bit. A full power 2 oz load in a 3" shell is horrendous in a 500. There simply is no reason to break your nose for an extra 1/4 oz of shot. I've even backed off more than that. If I want more shot, and I want more bore diameter, then you're beating around the bush if you don't just buy a 10 gauge. A 2 1/4 oz load still hurts in a Browning BPS 10 gauge, but at least you can shoot it without hitting yourself.