It's 3moa or less with tula steel case take that for what it is. It's favors 155g to 168g more so the 155g. I am not by any means an expert marksman and rarely shoot groups other than to zero. I have only shot tula steel case and GGG $1 a shot match so I am sure their are better factory and hand...
The Ace series supress very well the fit and finish is custom shop grade from the 4 I have owned. I have not ran it in a class yet but hopefully I will get a chance this year to to run a 2500 round weekend on this gun.
Their is a purpose to spray painting a firearm simply to match your environment so it doesn't stick out from a distance. Spray paint allows you to change your equipment to quickly match the seasons and background of your location. It's not suppose to be pretty, perfect or permanent.