Ah, I didn't use the proper technical definition of grouping.
Basically grouping refers to how close you can put rounds together like on a shooting target. To your vid, I was just commenting on how all the rounds seem to go to the same place, in relatively the same spot.
Done and done... my marker cost me close to a grand. That's with an A5 body, B5 chassis w/ APE board, some internal work and external parts like barrel, grips, sling, rings for the sling, front folding foregrip and mounting rails for the grip. The last things I need are a sight riser and the red dot sight. Oh and the fake mag mod.. but that's just pure vanity.