I don't know about your gun but I have the H&R model 176, the 3 1/2" 10 gauge with the 36" barrel. It has a lot more push but it's gentler than my 18" 12 gauge and a lot sexier to shoot. That gun is so much fun it should be illegal. Only reason I don't shoot it more is its hard to find shells for it, the expense of those shells and I haven't gotten a reloader yet that will handle 10 gauge shells.
I guess it's going to depend on how well the gun fits you and its total weight as to how hard it's going to punch you. I certainly can't fault mine in either category and I see no signs of damage or wear after my first case of shells.
It is full choked and buckshot is pretty much useless at any real hunting distance but at 25 yards #6, 4 lead shot and #3 steel shot cover a rabbit size target right nicely, haven't tried it farther than that yet but I'm going to. A foster type slug should work alright but my experience with buckshot and that full choke says its pretty useless much past 10 yards.