.25 grizzly promising result

Good day everyone, I always wanted to try the .25 grizzly but the were not available were I live until recently so I bought them to try them out. The Consistently in weight was much better than Any others pellet but varied in size. First I shoot them from the tin the results was not that good, then i tried to size them with tbt pellet sizer that I bought long time ago to size pellet but my group opened up with sized pellet.but it worked well with grizzly,that when I noticed some of them was very tight in the sizer and some will just fail through.
the gun is cricket.25 tunes to shot jsb heavy at 895 fps, the grizzly was going average 883 fps with excellent SD. 
The following group are the best I can achieve at 100 meter .

note: I calculated the BC with StrelokPro to be 0.09 and conform thats bc to 230 yard ( I could be wrong with that Bc).