The .338 Lapua Magnum was the first cartridge and caliber to be developed specifically for military sniper applications. It was also a good bridge between 300 Winchester Magnum and 50 BMG.

STTU is currently involved in test and evaluation of a .338 Lapua Magnum built on a Stiller’s TAC338 action, Bartlein barrel, and McMillan A5 stock. Stiller’s Actions also won the USMC contract for the MK13 300 WinMag with their TAC300/MK13 action.

.338 Lapua Magnum  built on a Stiller’s TAC338 action, Bartlein barrel, Piercision brake, Badger Ordnance bottom metal, and a McMillan A5 stock. Scope is a NightForce ATACR 7-35 x56mm FFP with a Tremor 3 reticle.

.338 Lapua Magnum ammunition development utilizing Peterson brass, Vihtavuori N170 powder, 300 grain Sierra Matchkings, and Cutting Edge 275 grain Lazers 

More coming as the range testing continues…..