Re: Nosler E-TIP extended range accuracy
Did you try adjusting your seating depth on the Barnes. I too have a 270 (Rem 700) and I get 1/4" groups with TSX's. I initially got about an inch with them going with an overall length of 3.34. Did the testing and now they are my best shooting load out of that rifle.
I would suggest looking at the Berger seating depth test on this forum (sticky) if you aren't sure how (I wasn't, it opened my eyes to just how much more I could get-I'm a rookie). It didn't take long to find the sweet spot.