From accurateshooter.com:
Last week, at the DSEi trade show in London, UK, Sako unveiled an
all-new tactical rifle, designed from the ground up as a modular
system, which can be user-configured in the field to shoot multiple
calibers. By changing bolts and barrels, Sako’s new TRG M10 can be
switched from a 7.62×51 NATO round to the .300 Win Mag, or the even
larger .338 Lapua Magnum. With the capability of the TRG M10 to shoot
both standard and magnum cartridges, Sako now has a product that can
compete with other multi-caliber sniper rifles such as the Barrett MRAD,
released last year.