According to Randy and Connie Brooks (former owners of Barnes and originators of the TSX), the 270 seemed to smack the buffalo harder in the 375 and the 350 TSX had similar effect of the 400gr TSX in the 416. I used 300gr A Frames in both calibers on buffalo and they worked well, but have since changed over to the 270 TSX in the 375 and the 350 in the 416.

A good principle to guide me through life: “This is all I have come to expect, standard lackluster performance. Trust nothing, believe no one and realize it will only get worse…”