Ive hunted for several years now, with two SRH's. One in .44, and one in .480. Both of these have digested many stout handloads, without a hickup. The .480 about 100fps under most Linebaugh data. Both are stone stock out of the box, except Houge grips.
Both will shame some rifles at 100yds.
I bought extra rings, so I can swap various scopes/dots around without constantly having to re-zero optics.
Thats a feature makes the SRH unbeatable for hunting.
Bottom line, I love them.
I don't really see how I could tweak these guns any better for the field. Note I said field, not from the the vise.
Tweak away, but I wonder if you are splitting hairs for hunting.