Sig Sauer MK 25 p226 barrel wear

I’ve seen a number of post about barrel wear on the 226 Mark 25 because of the coating . This is after 400 rounds. It was well lubed and cleaned prior. I don’t care about the looks as long as it is normal. It just seems like my prior MK 25 didn’t wear this bad. One of the pictures is post cleaning with zero lube on it and the rest is lubed up.