who produced the modern bolt-action sniper rifle  which Steyr SSG 04 was the basis of
Steyr SSG 04 The Steyr SSG 04 (German: Scharfschützengewehr 2004, English: Sniper Rifle 04) is a modern bolt action sniper rifle developed and produced by Steyr Mannlicher in Austria, as a complement to Steyr's SSG 69, using the same Safe Bolt System (SBS) action developed for Steyr's hunting rifles. It is also the basis for the Steyr SSG 08 and Steyr SSG Carbon.
Hartmann &amp; Weiss Hartmann & Weiss GmbH is a Hamburg-based custom sporting firearms maker founded in 1965. They make sporting arms, including shotguns, over and under, falling-block single rifles, and bolt-action rifles based on Mauser 98 and several other modern actions. They have produced small numbers of double rifles, in calibers from .375 H&H to the .600 Nitro Express.