I hope your a big'un and can take a punch. The worst kicking gun I've ever shot was a 20" 870 with 3.5" TSS loads. Once was enough. Maybe I'm just a wus. I switched to a gas-operated auto.
I patterned some TSS in my Stoeger 3020 (a semiauto) this past weekend and was truly shocked at the recoil. I swear that 20ga semiauto with TSS kicks harder than my 12ga Winchester 1300 (pump) with 3" Longbeards.
I seriously wasn't prepared for the thump it gave me when I pulled the trigger.