The SAN 511, formerly OM 50 Nemesis,[1] is a bolt-action sniper rifle made by Swiss manufacturer Swiss Arms (under license from AMSD).
It was created in early 2001 by Chris L. Movigliatti.
It fires the .50 BMG cartridge.
[2] It has a reported accuracy of 0.5 minute of arc (MOA) at 300 m (980 ft) and under 1 MOA at 1,000 m (3,300 ft).
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