There are at least two artists with this name: 1) Thrash Metal band from Lelystad, Holland 2) Thrashcore Metal band from Turku, Finland 3) Hip-hop group, update if you know about them! 1) Caliber is a Thrash Metal band from Lelystad, Holland. Caliber was founded in late 2011 by members Vidal Wildeboer (lead guitar/vocals) and Rogier Peters (guitar/backing vocals). Their influences are Metallica, Exodus, Tourniquet, Believer. They've played stages like Meesterlijk Metaal and Jolpop and are now heading for their first full length, which probably will be launched somewhere in early 2014. Caliber is now a power trio with the .