500 Rounds of 200gr FMJ .300 AAC Blackout Ammo by Magtech

This 300 AAC Blackout cartridge’s muzzle velocity is only 1,050 fps. While that may sound slow, that’s actually the whole point to it -- because it doesn’t break the sound barrier when it’s fired, it’s a relatively discrete cartridge to train with. This is immensely valuable when you’d like to brush up on your aim in a place where cracking reports wouldn’t be appreciated by neighbors, and also a good way to familiarize inexperienced or skittish shooters with a semi-automatic rifle’s performance. When utilized in conjunction with a silencer, it sounds like a mouse walking across velvet. (With some exaggeration.)

Because this is a Magtech product, this cartridge evinces quality through and through. It features a first run brass casing that’s ideal for handloading, a consistent and non-corrosive Boxer primer, and a propellant load that’s specially formulated to help create its subsonic velocity. Its heavy 200 grain projectile sports a full metal jacket as well, so you can count on great accuracy even after having fired for a long time.