Question on 3rd round flyers.

When I shot the back to back small groups I would fire a round, work on the smoker, fire a round, get more food ready, etc so there was time between shots for some cooling. Yesterday I fired four 3 shot groups quickly and had 2 touch and the 3rd round is out low left 1" or so every single time. I laid all 4 groups over one another and they are mirror images. I'm assuming heat is the culprit, the rifle is bedded, floated and torqued 35/25 in/lbs.


I plan on making my 1st one count but what could be the cause of the 3 round out every time? Bedding issue?


Thanks

When I die I hope I don't start voting democrat.