I am looking at building a do all rifle for myself, and my kids, to use. I want to use if for hunting and banging steel. It will be suppressed with an 18-20" barrel. I am building it on a Tikka Action. I am looking really hard at a 6mm Dasher. I reload so that is not a problem. I am wondering if anyone has build a Tikka in 6 Dasher with a short barrel? I am wondering what kind of velocity I could expect. I planned on shooting the 108 ELDM. I have seen a few velocities on here from 21" barrel shooting 105's. Those were 2750 and 2840 I believe? Am I crazy to think I can get at least 2650 out of an 18" barrel shooting the 108?