ORIGINAL: superstrutter
If you liked the Rem. hevi shot like I did(do), I still have a couple boxes left, you will like the Rem. Wingmaster HD's. They pattern much better for me than the hevi 13's. They actually pattern better than the old Rem. hevi shot. You may want to give them a try. I shoot the 3 1/2 inch.
Its kinda pricey, but everyone I've talked with that has tried Wingmaster has been very satisfied with it.
I shoot an 835 myself, now I shoot a Pure Gold .670, granted thats only .005" different, but it is different, and every gun shoots differently. I've tried almost everything there is to try and the best shell out of my gun is Winchester Supreme Elite Extended Range HD (its a mouthful). I shoot 3.5" 2oz #6. Nothing has ever beat it from my 835. Again, its pricey, but it really stomps everything else I've ever shot through that gun, which entails at least a dozen different combinations of lead and/or HD shot.