6x35mm
The 6x35mm round was developed at the request of a
government customer who needed a larger round than the 5.56, but was optimized for a
short barreled rifle as part of the CQB/PDW program. The round is a 65 grain, open
tip match type. Its casing is based on the .221 Fireball, but with a large rifle
primer as opposed to the small primer on the .221 Fireball. The powder is blended
for a complete burn within the first seven inches of the barrel, making this
cartridge ideal for barrels in the 8-10” range. The 6x35mm round is rated at 2,425
fps and has 848 ft-lbs, which puts it at 74 ft-lbs higher than the 5.56 NATO round,
when fired from a 10” barrel.
All these characteristics form a cartridge that has greater terminal velocity
and better ballistic capabilities, even out to 300 meters. It makes an ideal
candidate for compact weapons that are in use by our military vehicle drivers,
flight crews, and other personnel who are limited on their space but still require
powerful defensive and offensive weaponry. KAC’s PDW and SR635 are both weapon
platforms that were created around this uniquely powerful and versatile cartridge.