...and it did.
It showed a small increase in drop at 760 yards. 5.1 mils to 5.2 mils with the change in atmosphere.
When I saw impacts at 760 still low I added .2 mils to my zero and I was then high by .2 mils at 100. .2 mils is a lot! Nothing has changed with my load. I shot a group after the match that was 5 shots in 3/8"
The only thing possible to affect drop like it did was temperature which is a big factor in all chemical reactions including combustion
I'll do some actual chrono work to try to find out what's going on.