You're showing a lot of improvement, DesertDug
Although all the groups are showing the dreaded :"4 in - 1 out" effect that always haunts most of us, you have two groups that are under 0.9 and would be a lot better if the one shot was with the other 4.
I used On Target to measure the groups and got some interesting data.
Your second images right group is 0.833 and the third image left group is 0.766 even including the 1 out shot.
--------- Left --Middle--Right -- Average
Image 1 1.107------------------1.107
Image 2 1.147 1.241 0.833 ---1.074
Image 3 0.766 1.126-----------0.946
--------------------------Overall 1.037
Even with the 1-out shots causing some disruption of the group sizes, the averages would indicate that the results are improving slightly as you move toward a jump of 0.014 at 43.0 grs.
Attachment 6129
Attachment 6130
If the 1 out shot was in with the others, your average groups sizes would be a lot smaller. With the 1 out group moved in with the others, the group sizes are indicative of what a rifle might do if you could keep the one stray shot from ruining your groups.
You know from my June 4th session results that I reported on another thread how one lapse of concentration can cause an anomaly that messes up everything.
--------- Left --Middle--Right -- Average
Image 1 0.866 -----------------0.866
Image 2 0.541 0.723 0.833 ---0.699
Image 3 0.453 0.705 ----------0.579
--------------------------Overall 0.687
With the I out shots moved, the averages still show that the results favor 0.014 jump at 43.0 grains slightly and that indicates that the trends are in the same direction.
I think you have some data you can work with both with load development and with technique improvement.
Although you can't erase the errant shots, you can get an idea of what might be possible.