I currently have a custom 6.5 cm I had debated a 260 rem and a 6.5/06. I am not a professional shooter, I reload ammo and use factory. My 6.5cm has. 24" Krieger 8 twist . Is there any benefit to having a 260 rem, is there a big velocity difference? I know the 6.5/06 is a long action so you should get more velocity. I run 140 amax, 142 sierra hpbt and som 130 scirocco 2s. I don't know my velocity because I haven't even shot my barrel in. However I just wanted some opinions and numbers if possible. I know people have their preferences but I don't care I just want some professional advice. On the hogdon load data all the cartridges I have talked about run close together within 50-100 fps. So let's hear it guys!