I have been working with a new Tikka 20" chambered in 6.5 Creedmoor. I have only tried the 130 Berger HVLD at this point, but only getting around 2520 with 42.6 H4350. This is with new Lapua brass and CCI 450 primers. I wanted to try 140 class bullets, but I don't think I will have any kind of velocity if I go up in weight. With the heat in Texas right now, I don't know how much hotter I can really run the load. Any of you guys running short barrels have any suggestions? Thanks in advance for the help.