I have the H&R Ultra Slug in 12 gauge. It is one heck of a gun. The recoil is much less than my FILs Remington 870. The H&R comes in right at 9.5 lbs and is not a gun you would want to carry for long distances. I shoot cloverleafs at 100 yards and took a doe at 120 this year and had no drop. I have shot it at 150 yards and wouldn't hesitate to take a deer at that yardage.
I have handled the Savage in a LGS and it is a nice gun. Well made and if it shoots as well as their rifles, it should be a tackdriver. Plus it is a bolt gun which is just cool for a shotty. If I wanted a 20 gauge for a deer gun, I would buy that.