I installed my Shilen 260 Rem #7 26" barrel the other day and yesterday loaded rounds to break in ect. I am using Hornady 123g Amax and necked down Win 7mm/08 brass. The unloaded sized brass chambers and extracts fine and is not an issue. I used my Hornady LOL guage tool to measure to the lands so that I could figure out how long to load these to jump 10 thou. I realized it seems the "freebore" area is very short. My OAL is 2.750; that is only jumping 5 thou and thus really reducing the case capacity. I wonder if the throat maybe has a burr on it? It would just seem to me that a round should chamber at an OAL of 2.800....but, am I wrong? Or maybe it has to do with the shape of the 123g Amax....thoughts from you guys that have done Sheilen barrels. Mike