Might be able to get a few more shots by throttling back the tp adjuster to about 850 fps for max at the top of the bell curve.
good luck with your quest.
Ah nothing quite like a springer to ruin a scope! Those numbers are pretty good. Did you slug the barrel to make sure your casting the right size diameter? I've been under the impression aea barrels are looser bores, like my 30 cal is .303. A barrel band was the first thing I did to my 30 cal. Check out Bison airgun. That's where I got mine.