I had a 7mm TCU barrel in a 22" Contender, and the best velocity I could get was around 2300fps with 120gr bullets. The Nolser Reloading book shows loads in excess of 2400fps, but could never really come close to that in my rifle. I tried a variety of powders and various headstamps of brass, but anything over 2300 pushed pressures way too high for me. I am seriously considering a 6mm TCU, and I actually all ready have a die set for it. I really haven't had any experience with the 6.5 TCU, but have read good things about the cartridge. One thing to watch out for though, is the ream job on the barrel. The throat on my 7mm TCU was so long I had a difficult time seating bullets in to the lands for fireforming. 175gr BTHP's would barely get there, and even then is was questionable. If you do order one, try and get a new barrel with a specified length for the throat.