Load testing at Minsterly....

Went to Minsterly on the 1st April to do some load development for my .308 target rifle.
I did 10 loads from 41.2gn load to 43.0gn, five rounds per load.
The shoot started off with around 1.75" group and the group went down to 3/4" which is this image here.
Then the size of groups increased back to 1.75" at 43gn.
So now l know what is good for my RPA ranger an interesting day.
I did take this shot today. 5p coin for the size.