Dual 50. Calibre Pistols
From Tomb Raider Wiki
The Dual Calibre pistols, as seen in Tomb Raider Anniversary
The second pair of pistols that are acquired in Tomb Raider Anniversary (initially in the Coliseum level - Greece, then later in Natla's Mines - Lost Island).
Although more powerful than the standard-issue pistols Lara starts with, the range is significantly shorter and should only really be used for closer-combat circumstances with tougher enemies.
Ammunition is dispersed fairly generously in the game and with reasonable use, there should never be an issue with running out during battle.
--UMIST_For_Ever 00:24, 1 October 2008 (UTC)