Mine shoots 120 partitions at around 3450, which seems high, but its with factory loads and no other signs of pressure. 100 TTSXs at 3700'ish with 72 RL22.
Mine is 3670 with a 26 in. barrel, I tried some of my handloads in my nephew's new .275 Vanguard, shot two groups that averaged .470, didn't chrono it however. That is with the 72 RL22 100 TTSX load.
