I've shot 50 rounds of TSX bullets through my .375 at mostly 2,650fps to highest speed 2,740fps for just a few. 'Course, these were grooved. No damage I guess as rifle is curently shooting into just under 2" at 200 meters with Norma RN's, at 2,410fps, using 56gr. Re#15.

The barrel is a mite heavier than light sporter weight - about a #3 Shilen (magnum) taper.

This really doesn't mean anything, just that the Barnes TSX's went into small cloverleafs mostly. I shouldn't have wasted them shooting tiny groups. Oh well - got a bunch of 300's and 310gr. cast to shoot.
Full case of Trail Boss runs 1,385fps with the 310gr. cast FN's. Good deer load, I guess.