I love this sort of stuff!
You learn a great deal from missing and nothing from a dead center hit.
Those are deceptive conditions you are shooting in Clayne B!
If I have learned any lessons in LR shooting it is to invest significant time in observing before I dial my dope. I have also learned you can not rush the shot. Slow is fast! When I am shooting very long range I go so far as to draw a little map illustrating feautres and my best guess as to how they will affect the shot (feel free to laugh at me
When I have a feel for what the mirage, grass, trees, leaves, are doing (near and far) I then take my reading and dial my dope. The thing is it takes time to do that, so before I get on the trigger I recheck the conditions. As I lock on target and start my squeeze I am watching the mirage as much as I am the target.
For those curious if a 338 Lapua with 300gr Bergers would have stayed on target (with the same error) the answer is probably. The 308 has about 27 inches of drift at 500 while the Lapua has 13. So what does that buy you???
About 200 yards at that range.
The 300Win with a 230OTM? About 150 yards.
It is still is very much the shooter.
Thanks for sharing Clayne B!