This rest doubles as a pcp clamp vice tool for working on guns, too, along with scope mounting. I own both this and the stinger. Between the both they work great with bullpup style guns.
Just make sure and run a thread chaser tap thru the one clamp knob in charge of locking it from forward and backwards tilt, as when Caldwell built it whoever was in charge of that neglected to run the tap all the way thru. If nothing is done, your rest will irritatingly tip forward and back and you’ll never be able to tighten that knob to its fullest capacity.