I've got a .250 Savage, yes a little pip squeek .250 it has a 26" barrel and a really long throat and with a healthy dose of RL-17 it will spin 150 grain Ballistic Tips out the Muzzle at a little over 2900 FPS without any signs of excess pressure. My Chrony says 3000 but I've since checked and my Chrony reads a little high, So yes I believe a 6.5 CM with a 120 grain whatever and the right powder could top 3000 FPS safely depending on barrel length and throat dimensions.
Last edited by Filaman; 04/18/20.
