Was shooting my wildcat this afternoon and noticed the POI was moving around again. It's had about 5000 rounds thru it so far. It did this a while back and chased it down to the breach O-ring. Pulled the mag out and shot it and sure enough a puff of air came out where the mag goes. Pulled the breach O-ring out and it looked fine. Put a new one in and problem was solved. Easy enough fix. Got to looking and was wondering if my pellet probe was seating deep enough. Gun is wicked accurate so hate to mess with it. Measured the depth of the pellet probe from the back of the breach and it measures 1.106 closed. Has anyone else checked this measurement? Would be interesting to know what others measure.