@Vintovka69
Higher magnification scope for me.... my older eyes prefer higher magnification.
FWIW...The Hornady 55gr FMJ is a very good bullet.
And given the current ammo prices and supply restraints .... ( which flat out sucks )
I'd Try some of the AO 69gr SMK and AO 55gr BlitzKing
https://globalordnance.com/ammunition/centerfire-rifle-ammunition/223-remington/The previous batch of MEN 5.56 56gr FMJ produced darned good groups for many here... I don't know if the current production MEN 5.56 is as good ... but It would be worth a try to me.
30rd boxes and 510 cases available....
https://www.sgammo.com/site_search?populate=MEN+5.56Your group is very good... But, I would suggest try shooting off a good bag , at least once, ... I shoot far better off of bags than a bipod.... so it is worth trying.
Given you can obviously shoot... I also suggest you place the spare orange paster's around the Shoot N See target, and maybe on a larger version , ... then use a Sharpie at the center of the orange dot, drawing a bullseye dot... that will help with a smaller point of aim.
I then "allow" the bullet impacts to be off to one side or the other, so I don't shoot out my aiming point. ( Hope that makes sense )
Oops... Edited to add... save your brass. You might not reload now, but....