I was reading a thread Mike posted about 6mm and decided to start a new thread on this. I have a Custom rifle I bought years ago in Texas in a 6mm Rem. It has a Mauser type action, a Timney<sp trigger and a Shilen barrel. I absolutely love shooting this rifle and hunted whitetail with it for years. Question I seem to get asked alot is "isn't that the same as a .243?" People have told me it's exactly the same, and uses same bullet. My response is that if it were exaclty the same why do they sell different ammo on the shelf. Maybe you guys can educate me so I can back up my answers with some raw data. Thanks guys.