Consistent flyers in 5-round group

[AM_Hunter]

I'm working on load development for my 300 PRC and getting 2 fliers out of my 5 round group and trying to make sense of it. Shots 1-2 stack, then shot 3 flies high left, then shot 4 stacks, and shot 5 goes low left. I don't think its a barrel heating issue since 3 flies and 4 stacks again. I'm leaning towards either me jumping/flinching or scope issue. The two groups in the photo below are at different grain values and different distances from lands as noted on the cardboard. Am I right to assume this is either a flinching issue or a scope issue? Or could some kind of variance in the loads cause this?

All screws have been properly checked and torqued as well so I dont believe it is an issue with that. Rifle is a Christensen MPR with a Vortex Strike Eagle 5-25. I know I know not the best combo when it comes to CS and QC so theres definite possibility of it being the rifle and/or scope but Id like to eliminate some of the cheaper possibilities before I move to swapping more expensive components.

I got 10 more rounds of each load plus 5 factory Hornady 225s to test next time I get to the range but I'm in between hunts and bored. If the Hornady's send a flier then ill know its a scope issue. If they group well and the reloads send fliers then ill know its either a load issue or a me issue.

Should note this is NOT my main hunting rifle.

 

[Vern400]

Question.
Within a five shot group, are you coming off the gun? I purposely come off the gun, or even get up and walk around, then sit back down when I want to throw a flyer. When I can't throw a flyer, short of just being stupid, I know I've got a good load. If you stay on the gun and work the bolt with your right hand without letting go with your left.... Does the group change? I've had minor POI changes occur due to using a very hard front rest, or having it get cold and go from a t-shirt to a poofy Carhartt jacket.

Stay on the gun and pull it in snug the same for every shot. Does it change anything? It could be a scope problem, or the action could be slipping in the stock even if it's probably torqued. But some guns, particularly light ones are really picky about how you hold them, and especially with heavy recoiling cartridges.

033 and 043. Tell me those aren't group sizes.