sc928porsche said:It depends on what you call "life". Barrel composition has a lot to do with it (steel, stainless steel, chromium steel etc). Bullet speed and powder blast will effect it. Barrel temp. will also effect wear. Barrel care is also another one (badly rusted and pitted). I would expect that the average hunting rifle chambered in 30-06 would last between 10K-20K if properly taken care of.