Indoor range grouping

Sadly, 75 feet is as far as the range goes. There are no outdoor ranges anywhere near me to test with, so this is best as I can do. The body shots are unrelated, a fellow range guy let me shoot at his target. Mine are all the headshots (and the one to the left where I missed entirely...ooops) the one of the right target was done by him with my MN.

Mine is hex receiver, 1933, Tula Arsenal.

Acceptable grouping for what is effectively point-blank?

https://preview.redd.it/tcvq55a37f0g1.jpg?width=3000&format=pjpg&auto=webp&s=2c432af3868ae9c6ea017d3109af8a72d669513c