Not a gun writer but when I started hunting with 7/57 I used the 140 gr partition. It never failed but once I mistakenly used a solid base and it killed so well that I switched to Hornady 139 gr interlocks.(Solid bases had gone away) They worked perfectly too. At 2700 FPS you can feel safe that any of the mentioned bullets will work and work well. I would feel totally comfortable with the Speer 145.

Last edited by ERW3; 02/03/16.