General Dynamics, U.S. Ordnance to Produce M2s/M2A1s -The Firearm Blog
Will Californians go after gun manufacturers the way states did with tobacco companies? – Orange County Register
GoatGuns Miniature .50 Cal Barrett 82A1 Model in Black
Sero Engineering Factory Tour (Makers of GM6 Lynx .50BMG rifle) -The Firearm Blog
M2 .50 Caliber Machine Gun
7 Best Long-Range Cartridges: Hit Stuff Really Far Away - Pew Pew Tactical
Go Big or Go Home — Care and Feeding of .50 BMG Rifles « Daily Bulletin
Could a .50 caliber bullet kill you within 3 feet of passing you and not actually hitting you just because of the air displacement? - Quora
Best Air Rifles for Hunting Large Game