I don't know about in semi-autos, but in my single-shot Rossi .223, the 62gr Wolf is the most accurate round I've fired in it from a factory round.
I clean after every session, so that isn't an issue.
I still prefer American, brass-cased ammo....( and that is all I'll run in my AR)...... but because I got some for a really good price, I will use the Russian stuff for plinking with my Mini and the Rossi.