for a plinker, if you want higher shot count, have you considered going small, like a sub-12 fp gun? If punching paper, a .25 seems a bit of overkill. Even rabbits at 20 yards a .25 is a lot of gun. A .177 in European standard might fit the bill. Sips air, as Tom Holland did a video on his Marauder field target rig getting 300 shots at 6 fp. I have a Crosman 1701P pistol at about 6fp, get 40 shots before I have to pump it up and it's a small cylinder. About 30 strokes and I'm off and shooting again. For a pumper, where any increase in power increases the number of strokes, a reduction of power decreases the number of strokes.
Of the two guns you listed, I'd probably go with the streamline in .177, tuned down to 12fp. Just a thought from the for and of practicality
