out of the box 25 AT44S-10 shot string

 had this rifle a couple of weeks and have been hunting with it.i was caught of guard by how accurate this rifle is.it is the non QE model.i did put a hatsan air stripper on it,that is only modification I have done to it.i have not missed a squirrel yet,made kills from 25 yards to 45 yards.got a bunch of startlings with it but with the 25 all I have to to is hit them and they down,i only take head shots on the squirrels with all my air rifles...what caught me was it only shoots 807-832fps for the two clips I use when hunting and it shoots dead on where I aim...I shot three mags. JSB 25.39 grain pellets.
here is shot string:
807 2900psi
827
819
830
821
816
831
825
826


829
827
832
825
832
824
831
816
817


799
805
799
789
786
777
770
762
755

my main question:is this a normal shot string for this rifle?how many fps can it push without losing accuracy?