Need advice

[mapper]

While vertical dispersion looks good at 45 gr, how did the primers look?
were they flat, or still had a little radius left?
Did they show any signs of cratering where the firing pin struck?
If no ejection issues, or signs of pressure, you could either run with it,
Or you could try and dropping the charge weight about 0.2 gr from 45 gr, as well as increasing it to 45.2 gr.
It may get a little better, or not.
The idea here is to have a little leeway in charge weight from your desired charge.
For temperature and powder lot variations.

Then you may or may not decide to experiment with seating depths and see if that makes a diffrence.
The seating depths if you are using them in a magazine will be the limiting point if you don't want to single feed.

At some point you will get to the "that's good enough for me" point.
You may be there already, but the process is sound that you have gone through.

The rifle will tell you what it likes.
A load that looks good at 100 may be diffrent at 300,
But it is a good place to start.
Thanks for posting your results.
Looks good.

It is a bit of work, but satisfying when you find a load the rifle really likes.