The group below was at 100 yards with some old FMJ ammo found in a magazine using a red dot 1X scope on the cheapest AR upper I could buy:
This is with everything the same except the ammo:
This is the same ammo with a precision rifle using a 14.5 X scope. This is 10 rounds with the last two, and possibly three rounds flying to the right after the wind came up:
It is a handloaded 55 grain match grade bullet. In two rifles with 24” barrels it achieved 3,140 and 3,156 fps at the muzzle with standard deviations of 14.4 and 14.2 fps. With the cheap, short (18”?) barrel it came out of the muzzle at 2,943 fps with a standard deviation of 37.0 fps.
This is a load that works well in three very different rifles. I’m extremely pleased.