Question: who produced the modern bolt-action sniper rifle  which Steyr SSG 04 was the basis of 
Sentence (from "Steyr SSG 08"): The Steyr SSG 08 (German: Scharfschützengewehr 2008, English: Sniper Rifle 08) is a modern bolt-action sniper rifle developed and produced by Steyr Mannlicher in Austria.
Relevant evidence: Yes