[BhamRoadrunner]

I only use wolf in my SKS, that or the blue box stuff we sell at Academy sports. My russian guns _LOVE_ steel case ammo, however yea, i've known it to be very very hard on some other extractors that are only used to brass ammo. Brass is a much softer metal than steel and works much better with lighter extractors. AR's shouldn't have a problem with it and worse case scenario is that you buy a beefed up extractor from Midway and keep on going.