I have used both the Winchester CT 168 gr and the Swift Scirocco 165 gr on deer .The last buck I shot with the 168 CT in a 30-06 broke the the off shoulder before exiting .I have only shot 1 deer with the swift 165 gr .Both bullets preformed perfictly for me . Some of the pore proformances with the BT with 300 mag and up at close range.IMO shoot the bullet that you have more faith in .If you dought a bullet , you may fail brfore you start