Well I can't say anything to 50yds.That's stretching it a bit for a springer. But at 25yds My recently acquired R9 showed a liking for this H&N FTT (5.55mm head-size). Also liked the JSB Exact 14.35gr by 5.5mm, iffy H&N Spitzkugel 16gr, JSB Exact 15.89, AA 16gr, JSB Exact Jumbo15.89gr 5.52mm, Gamo Rocket 14.5gr (the BB pellet) did well, they r good for shooting bottles,the BB can break the glass. I've tried some crosmans. It did OK with the Pirahnas, nogo with the DESTROYERS, DOMED ULTRA HEAVY,Gamo magnum country, and those plastic red tipped pellets,I think those were gamo. Oh well, good luck. Part of the fun is the search for the magic pellet.