Didn’t like the Russian animal ammo. Very dirty.
I do not use any steel ammo in my hand guns. They get the good stuff for practice and carry. All 9mm. If you study the serious tests, good SD 9mm ammo has plenty of penetration and expansion.
The Rock River AR15 gets a little of everything. I have run several thousand rounds of Wolf / WPA through it with nary a problem. A little dirty, but not too. Tula not good. Did not feed consistently.
The AK, well it eats any steel ammo like M&Ms. Just like it is supposed to do.