.300 Winchester Magnum

The .300 Winchester Magnum has been known for accurate, long-range relatively flat trajectory. TTI Armory currently produces a variety of application specific cartridges. Depending on the mission requirement, we offer Match-Grade, Frangible and Subsonic product lines.

300-1001
A match grade cartridge, manufactured with the Sierra Matchking™ 190gr. bullet, it delivers high performance at extended ranges.


300-1002
A match grade cartridge, manufactured with the Hornady AMAX™ 178gr. bullet, it delivers high performance at extended ranges. This cartridge benefits from a polymer tip bullet designed to rapidly expand upon impact.

300-1003
A subsonic cartridge, designed specifically for the use in suppressed or silenced precision rifle applications. Manufactured with a mission specific propellant, this subsonic cartridge provides the end user an accurate fully stabilized specialized cartridge.


300-1004
A frangible cartridge, utilizing the Sinterfire™ lead free bullet comprised of a copper & tin alloy. Its function is to fragment upon contact with hard targets. This cartridge is manufactured for reliable function in all current modern rifles and is ideal for training purposes.


300-1005
A match grade cartridge, manufactured with the Sierra Matchking™ 220gr. bullet, it delivers high performance at extended ranges. TTI Armory manufactures this cartridge to MK 248 MOD 1 specifications.