Been in denial, but I finally put a bore scope down the 28 Nosler and it's fire cracked with 150 shots +/- 10 unaccounted for! The throat is alright, it groups well, I was getting pressure spike issues out of now where with tested loads? That's why cleaned it up and scoped it to see the inside. This is a chromoly steel 26" varmint weight. I adamant about doing only doing 3-4 shot strings within a 20-30 minute window.