Here is my set up:

Browning Gold 3.5 with a 26" barrel
Madd Max Choke .670 restriction
Star Dot sights
Winchester Xtended Range 3.5" #5 shot.

It is very effective out to 50 yards. I have already taken 2 toms this year with it. One at 45 yards and one at 20 yards.

I also have a Comp n Choke that I used from time to time, but it does not pattern as well as the Madd Max with the Xtended Range Ammo.

I realize that it is not a SX2, but it is extremely close.

Good Luck to you.