Kodiaz,
Could you show a link to this graphite-coated stuff? I think you may be mistaking it for the polymer-coated stuff.
The poly-coated stuff works just fine in my Kel-Tec SU-16B, but then again so did the lacquer-coated ammo (current production Barnaul and old Wolf), and all brass ammo...even when mixing and matching.
When I need to shoot good ammo out of the rifle, I'll shoot good ammo.
When I want to have some fun popping tin cans at the range, practicing various drills, or generally not putting such a high priority on precision accuracy, I'll shot Wolf. It works just fine in my gun, it's caused me no problems, and if it does Wolf will provide a 100% refund on my purchase price, and include free shipping back to them. On the few occasions when a Wolf cartridge has really goofed (I recall something about an AK going "boom" from a double-charged 7.62x39mm), they've been known to replace the firearm with only a minimal amount of questions asked.
Can't ask for much better service than that...
