And in that arena, the top competitors even have to be aware of the temperature of the rounds they haven’t yet shot. In engineering terms, precision is all about converting variables into constants. You may be interested in looking up a fellow named “Dutch” Schoultz, who achieves some amazing results with muzzle loaders.
I found that very interesting. He told me he drives to matches with a small trailer with reloading equipment where he can customize the loads depending on the weather conditions and the target results of the prior shots he made.
Apparently these guys keep extensive notebooks on everything........