My Romanian PSL will hit the first shot on an 18" gong at 395yds. but after that as long as the barrel is hot it will hit just as indyk says.
The problem is that the barrel heats up different ways each shot so you get a scattered pattern.
Sorry - but they are as accurate as a PSL.
Ammo limitations are what hamstrings most 54R rifles, not the platform.
My PSL can do this:
At how many yards is that shot? Just curious