I do have a borescope but I would have seen some indication of the coating residue on the patches and I didn't. Bore is as clean as a whistle.
Also there is no way I could put a sabot over these. The bullets are full bore conicals.
Next outing I am going to try the same bullet with lube and no coating.
I'm dead on at 100 yds and 2" high at 50. That's perfect for 99.9% of my hunting.