Ok, seriously, there is no need to overthink this.

1. Keep track of load development and which load you settle on.

2. Keep a rough count of the number of rounds fired. An easy way to do this is to have a "counted brass" box, and when you get home, count the fired brass from that day's shooting, and then dump it into the box.

Shoot the barrel until it's toast, enjoy it, and then buy another one.

There is no need to log every condition for every shot (and in timed events it's not going to happen anyway), as long as you have verified that your dope scales as predicted in different conditions... so I only log results I that don't match the computer model.