I have the exact same 725 20ga feather and either use fiocchi golden pheasant 2 3/4 5 shot or the kent upland bismuth in 5 shot if hunting where non tox is required.
My brother in law had 2 gsp's attack a porcupine last fall in SD on a reservation. After an hr of pulling quills decided that it was time for a trip to the vet. Over 300 quills were removed from each dogs face and mouth area. Not a pretty sight.
I've got the kennetrek xkg, very tough. Showing no wear after 3 seasons. A bit warm in the early season but probably not anymore than the other brands.
Don't think they have a 725 with a round know. You gotta get what fits you best, I've also got a 525 20ga field and I really don't notice much difference between it and the 725 that I have.
Be sure to check out the browning 725's in the feather or field in 20ga. I have both with 28" barrels. If I remember right they are close to the same price as the 828.
I'm assuming you don't need non-tox shot. If you don't know it would be wise to check. Otherwise the 1 1/4 Oz loads in 5 or 6 shot will work. Good luck.
Rem 870? Or use what you have and give it a good cleaning afterwards. I use my citori 525 feather rain or shine and still looks like the day I bought it other than a scratch in the stock that I got on a perfect day.
I shoot a 20 ga montefeltro with a modified choke and a citori 725 20ga with mod/im. Haven't hunted alot with the citori and since I use the mod choke in the Benelli I figured it would work for the citori as 1st shot.