It's hard to beat an 870 supermag. I had one of the older ones with the thumbhole stock that I to this day regret getting rid of. Only reason I parted with it was that I found an 1187 NWTF for a steal and couldn't keep 'em both at the time. For some reason I prefer that thumbhole stock to the sureshot...but that's just me. Both of my guns shot magnum blend the best with a few different chokes. I'm currently shooting 3 1/2 magnum blends with the magnum blend choke. Never counted pellets but it's got a great even pattern at 40 yards and has killed a longbeard at 65 yards( he was a bit farther away than I thought when I shot...could have been the excitement of it being my first turkey I guess, lol). I'm sure you'll enjoy your new Remington and hopefully kill lots of gobblers with it in the years to come. Most of the guys have already given you some great advice on how to set yours up. I shot most about 10 different brands/types of ammo through mine when I got it to see what it liked the best. Not the cheapest or the easiest on the shoulder method...but I try to enjoy shooting every chance I get.