Load what works.
Why did you load a box before you knew they would work for your gun? The most I ever loaded for a new gun or new load was 15 rounds.
It gave me a good idea of where I was and where I wanted to go with the load.
If you go back to the book load that did not produce the accuracy, what would you accomplish?
Inside Every Bright Idea Is The 50% Probability Of A Disaster Waiting To Happen.