The trigger and an education in wind reading, both via a wind meter and other means, can help the long game especially from compromised positions, but none of the loading details you mention matter if it keeps grouping like your first outing with tight ES and SD numbers.
Great! and good to know, also glad I wont have to buy all the cool tools a Bud of mine that I mentioned earlier in this thread has, he's OCD about all the steps I mentioned, my dumbass hit the clear button on the chrono before I remembered to check SD numbers, but E.S. was 11 fps for three, were I holding on game at 5 and 700 instead of steel earlier, I would have naturally held a bit [2 or 3 inches] left for drift, this build sure is a lot of fun.
I think it's going to handle my 5 to 700 yard vermin chores quiet easily.
