“0497” spotted these photos at defense.gov.au. The rifles pictured appear to be the Blaser Tactical 2. The photos are of the Australian Special Operations Task Group (SOTG) in Oruzgan Province, Afghanistan. Click to expand:
The Tactical 2 is available chambered in .223 Rem., .308 Win., .300 Win. Mag. and .338 Lapua Mag. and features the Blaser straight pull bolt system.
Australia recently purchased AU$161,716.66 worth of Blaser Tactical 2 rifles: