PRS equipment questions

[Flight Medic]

<snip>Rank the top 20% of your firing solution error budget..they are 80% of the result.</snip>

That went straight over my head, bro. I have NO idea what any of that means. I know how to put the crosshairs on the target and squeeze the trigger...and that's about it. I'm still working on breathing control and trigger technique. Hoping a computer will do all the other work for me. LOL