What is the 50 caliber sniper rifle?

Answer:
There's a few different ones.. the Barrett M81/M107 is probably the most well known. There are also the Barrett M95, Zastava Black Arrow M93, MacMillan Tac-50, and others.

Contrary to popular belief, the .50 BMG is not the most powerful cartridge used in a sniping/anti-material rifle - in fact, it pales in comparison to some of the others, such as the 14.5x115 cartridge used in the Gepard G3 and Denel NTW, or the 20x110 cartridge used by the RT-20 and Denel NTW-20x110.
First answer by ID1245553102. Last edit by BurningSaviour. Contributor trust: 231 [recommend contributor recommended]. Question popularity: 2 [recommend question].