Sniper by ~AlexJJessup on deviantART US Marines- I wish the 40k universe includes the old fashioned sniper detachments in the IG Ranks, though they are present, they don't really capitalise on them or really utilise them properly
REMINGTON’S M24E PROGRAM IS APPROVED. After 20-plus years of active duty service, the M-24 gets is needed update.
Sniper School: Precision Long-Range Shooting Tips to Make You a Better Hunter | Outdoor Life
Nemo Arms Omen rifle - an AR-15 variant chambered in .300 Winchester Magnum
Long Range Rifles.
Sniper Rifle Facts - 5 Things You Didn't Know About Sniper Rifles | Amazing Facts About Your Weapon by Gun Carrier http://guncarrier.com/5-things-you-didnt-know-about-sniper-rifles